feat: add theme selection functionality and update theme management in the application, including new themes and improved persistence handling

bun.lock

@@ -58,6 +58,7 @@
         "marked": "^17.0.1",
         "papaparse": "^5.4.1",
         "svelte-sonner": "^1.0.5",
+        "theme-change": "^2.5.0",
         "xlsx": "^0.18.5",
         "xlsx-js-style": "^1.2.0",
         "zod": "^4.1.12",
@@ -132,7 +133,7 @@
   "catalog": {
     "@eslint/js": "^9.39.1",
     "better-auth": "1.3.34",
-    "convex": "^1.28.2",
+    "convex": "^1.31.0",
     "eslint": "^9.39.1",
     "typescript": "^5.9.2",
   },
@@ -1461,6 +1462,8 @@
 
     "text-segmentation": ["text-segmentation@1.0.3", "", { "dependencies": { "utrie": "^1.0.2" } }, "sha512-iOiPUo/BGnZ6+54OsWxZidGCsdU8YbE4PSpdPinp7DeMtUJNJBoJ/ouUSTJjHkh1KntHaltHl/gDs2FC4i5+Nw=="],
 
+    "theme-change": ["theme-change@2.5.0", "", {}, "sha512-B/UdsgdHAGhSKHTAQnxg/etN0RaMDpehuJmZIjLMDVJ6DGIliRHGD6pODi1CXLQAN9GV0GSyB3G6yCuK05PkPQ=="],
+
     "tinyglobby": ["tinyglobby@0.2.15", "", { "dependencies": { "fdir": "^6.5.0", "picomatch": "^4.0.3" } }, "sha512-j2Zq4NyQYG5XMST4cbs02Ak8iJUdxRM0XI5QyxXuZOzKOINmWurp3smXu3y5wDcJrptwpSjgXHzIQxR0omXljQ=="],
 
     "tmp": ["tmp@0.2.5", "", {}, "sha512-voyz6MApa1rQGUxT3E+BK7/ROe8itEx7vD8/HEvt4xwXucvQ5G5oeEiHkmHZJuBO21RpOf+YYm9MOivj709jow=="],