Add dark/light mode support to favicon

CHANGELOG.md

@@ -1,5 +1,6 @@
 ### 2026-02-01: 1.0.0
 
+* Add dark/light mode support to favicon
 * Change app title to sentence case
 * Open CHANGELOG.md
 * Release v1.0.0

index.html

@@ -4,7 +4,7 @@
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Speed reader</title>
-    <link rel="icon" type="image/svg+xml" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 19.5v-15A2.5 2.5 0 0 1 6.5 2H20v20H6.5a2.5 2.5 0 0 1 0-5H20'/%3E%3Cpath d='M8 7h6'/%3E%3Cpath d='M8 11h8'/%3E%3C/svg%3E">
+    <link rel="icon" type="image/svg+xml" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cstyle%3Epath%7Bfill:none;stroke:%23666;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round%7D@media(prefers-color-scheme:dark)%7Bpath%7Bstroke:%23fff%7D%7D%3C/style%3E%3Cpath d='M4 19.5v-15A2.5 2.5 0 0 1 6.5 2H20v20H6.5a2.5 2.5 0 0 1 0-5H20'/%3E%3Cpath d='M8 7h6'/%3E%3Cpath d='M8 11h8'/%3E%3C/svg%3E">
     <link rel="preconnect" href="https://fonts.googleapis.com">
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
     <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap" rel="stylesheet">