Redesign theme toggle as a two-icon light/dark switch

Replace the single-icon popover with a dropdown of radio inputs with a
compact two-button toggle (light/dark), inspired by vale.rocks' design:
clicking an icon forces that theme, clicking the active icon again
returns to following the system preference. Keeps the existing
light-dark() colour-scheme mechanism and view-transition wipe
animation, and reuses the project's existing Fluent UI sun/moon icons.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Fn4aNjE3ofpDM78F4qmdCV

public/assets/js/app.js

@@ -1,2 +1,2 @@
-(()=>{var l=class{constructor(){}async register(){let r=await this.getCreateOptions(),e={challenge:this.base64URLStringToBuffer(r.challenge),rp:{id:r.rp.id,name:r.rp.name},user:{id:new TextEncoder().encode(window.atob(r.user.id)),name:r.user.name,displayName:r.user.displayName},pubKeyCredParams:r.pubKeyCredParams,excludeCredentials:[],authenticatorSelection:r.authenticatorSelection,timeout:6e4},t=await navigator.credentials.create({publicKey:e});if(!t)throw new Error("Error generating a passkey");let n={id:t.id?t.id:null,type:t.type?t.type:null,rawId:t.rawId?this.bufferToBase64URLString(t.rawId):null,response:{attestationObject:t.response.attestationObject?this.bufferToBase64URLString(t.response.attestationObject):null,clientDataJSON:t.response.clientDataJSON?this.bufferToBase64URLString(t.response.clientDataJSON):null}};if(!(await window.fetch("/admin/passkeys/register",{method:"POST",body:JSON.stringify(n),cache:"no-cache",headers:{"Content-Type":"application/json","X-CSRF-TOKEN":document.querySelector('meta[name="csrf-token"]').getAttribute("content")}})).ok)throw new Error("Error saving the passkey");window.location.reload()}async getCreateOptions(){return await(await fetch("/admin/passkeys/register",{method:"GET"})).json()}async login(){let r=await this.getLoginData(),e=await navigator.credentials.get({publicKey:{challenge:this.base64URLStringToBuffer(r.challenge),userVerification:r.userVerification,timeout:6e4}});if(!e)throw new Error("Authentication failed");let t={id:e.id?e.id:"",type:e.type?e.type:"",rawId:e.rawId?this.bufferToBase64URLString(e.rawId):"",response:{authenticatorData:e.response.authenticatorData?this.bufferToBase64URLString(e.response.authenticatorData):"",clientDataJSON:e.response.clientDataJSON?this.bufferToBase64URLString(e.response.clientDataJSON):"",signature:e.response.signature?this.bufferToBase64URLString(e.response.signature):"",userHandle:e.response.userHandle?this.bufferToBase64URLString(e.response.userHandle):""}};if(!(await window.fetch("/login/passkey",{method:"POST",body:JSON.stringify(t),headers:{"Content-Type":"application/json","X-CSRF-TOKEN":document.querySelector('meta[name="csrf-token"]').getAttribute("content")}})).ok)throw new Error("Login failed");window.location.assign("/admin")}async getLoginData(){return await(await fetch("/login/passkey",{method:"GET"})).json()}base64URLStringToBuffer(r){let e=r.replace(/-/g,"+").replace(/_/g,"/"),t=(4-e.length%4)%4,n=e.padEnd(e.length+t,"="),a=window.atob(n),o=new ArrayBuffer(a.length),i=new Uint8Array(o);for(let s=0;s<a.length;s++)i[s]=a.charCodeAt(s);return o}bufferToBase64URLString(r){let e=new Uint8Array(r),t="";for(let a of e)t+=String.fromCharCode(a);return btoa(t).replace(/\+/g,"-").replace(/\//g,"_").replace(/=/g,"")}};var d=class{constructor(){this.widget=document.querySelector("#theme-selector")}setupEventListeners(){this.widget.querySelectorAll("#theme-selector-dropdown input").forEach(r=>r.addEventListener("input",e=>{let t=e.target.value;this.widget.querySelectorAll(".toggle svg").forEach(u=>{u.classList.contains(t)?u.style.display="":u.style.display="none"});let n;switch(t){case"dark":case"light":n=t;break;default:n="light dark"}let a=window.matchMedia&&window.matchMedia("(prefers-color-scheme: dark)").matches?"dark":"light",o=document.querySelector("html"),i=o.style.getPropertyValue("color-scheme");i===""&&(i="light dark");let s=!1;n!==i&&(n==="light dark"?s=i!==a:i==="light dark"?s=n!==a:s=!0),o.style.viewTransitionName="changing-theme",s&&document.startViewTransition?document.startViewTransition(()=>{document.querySelector("#theme-selector-dropdown").togglePopover(),o.style.setProperty("color-scheme",n)}):(document.querySelector("#theme-selector-dropdown").togglePopover(),o.style.setProperty("color-scheme",n))}))}};var h=new l;document.querySelectorAll(".add-passkey").forEach(c=>{c.addEventListener("click",()=>{h.register()})});document.querySelectorAll(".login-passkey").forEach(c=>{c.addEventListener("click",()=>{h.login()})});var p=new d;p.setupEventListeners();})();
+(()=>{var l=class{constructor(){}async register(){let t=await this.getCreateOptions(),e={challenge:this.base64URLStringToBuffer(t.challenge),rp:{id:t.rp.id,name:t.rp.name},user:{id:new TextEncoder().encode(window.atob(t.user.id)),name:t.user.name,displayName:t.user.displayName},pubKeyCredParams:t.pubKeyCredParams,excludeCredentials:[],authenticatorSelection:t.authenticatorSelection,timeout:6e4},r=await navigator.credentials.create({publicKey:e});if(!r)throw new Error("Error generating a passkey");let s={id:r.id?r.id:null,type:r.type?r.type:null,rawId:r.rawId?this.bufferToBase64URLString(r.rawId):null,response:{attestationObject:r.response.attestationObject?this.bufferToBase64URLString(r.response.attestationObject):null,clientDataJSON:r.response.clientDataJSON?this.bufferToBase64URLString(r.response.clientDataJSON):null}};if(!(await window.fetch("/admin/passkeys/register",{method:"POST",body:JSON.stringify(s),cache:"no-cache",headers:{"Content-Type":"application/json","X-CSRF-TOKEN":document.querySelector('meta[name="csrf-token"]').getAttribute("content")}})).ok)throw new Error("Error saving the passkey");window.location.reload()}async getCreateOptions(){return await(await fetch("/admin/passkeys/register",{method:"GET"})).json()}async login(){let t=await this.getLoginData(),e=await navigator.credentials.get({publicKey:{challenge:this.base64URLStringToBuffer(t.challenge),userVerification:t.userVerification,timeout:6e4}});if(!e)throw new Error("Authentication failed");let r={id:e.id?e.id:"",type:e.type?e.type:"",rawId:e.rawId?this.bufferToBase64URLString(e.rawId):"",response:{authenticatorData:e.response.authenticatorData?this.bufferToBase64URLString(e.response.authenticatorData):"",clientDataJSON:e.response.clientDataJSON?this.bufferToBase64URLString(e.response.clientDataJSON):"",signature:e.response.signature?this.bufferToBase64URLString(e.response.signature):"",userHandle:e.response.userHandle?this.bufferToBase64URLString(e.response.userHandle):""}};if(!(await window.fetch("/login/passkey",{method:"POST",body:JSON.stringify(r),headers:{"Content-Type":"application/json","X-CSRF-TOKEN":document.querySelector('meta[name="csrf-token"]').getAttribute("content")}})).ok)throw new Error("Login failed");window.location.assign("/admin")}async getLoginData(){return await(await fetch("/login/passkey",{method:"GET"})).json()}base64URLStringToBuffer(t){let e=t.replace(/-/g,"+").replace(/_/g,"/"),r=(4-e.length%4)%4,s=e.padEnd(e.length+r,"="),n=window.atob(s),a=new ArrayBuffer(n.length),o=new Uint8Array(a);for(let c=0;c<n.length;c++)o[c]=n.charCodeAt(c);return a}bufferToBase64URLString(t){let e=new Uint8Array(t),r="";for(let n of e)r+=String.fromCharCode(n);return btoa(r).replace(/\+/g,"-").replace(/\//g,"_").replace(/=/g,"")}};var d=class{constructor(){this.widget=document.querySelector("#theme-selector"),this.btnLight=this.widget.querySelector("#btn-light"),this.btnDark=this.widget.querySelector("#btn-dark"),this.status=this.widget.querySelector("#theme-status"),this.currentTheme="system"}setupEventListeners(){this.btnLight.addEventListener("click",()=>{this.applyTheme(this.currentTheme==="light"?"system":"light")}),this.btnDark.addEventListener("click",()=>{this.applyTheme(this.currentTheme==="dark"?"system":"dark")})}applyTheme(t){let e=t==="light"||t==="dark"?t:"light dark",r=window.matchMedia&&window.matchMedia("(prefers-color-scheme: dark)").matches?"dark":"light",s=document.documentElement,n=s.style.getPropertyValue("color-scheme");n===""&&(n="light dark");let a=!1;e!==n&&(e==="light dark"?a=n!==r:n==="light dark"?a=e!==r:a=!0);let o=()=>{this.currentTheme=t,s.style.setProperty("color-scheme",e),this.btnLight.setAttribute("aria-pressed",String(t==="light")),this.btnDark.setAttribute("aria-pressed",String(t==="dark")),this.status.textContent=t==="system"?"Theme set to system default":""};s.style.viewTransitionName="changing-theme",a&&document.startViewTransition?document.startViewTransition(o):o()}};var h=new l;document.querySelectorAll(".add-passkey").forEach(i=>{i.addEventListener("click",()=>{h.register()})});document.querySelectorAll(".login-passkey").forEach(i=>{i.addEventListener("click",()=>{h.login()})});var u=new d;u.setupEventListeners();})();
 //# sourceMappingURL=app.js.map