refactor: remove i18n dependency and related code

- Removed the i18n module and its related functions from the project.
- Eliminated the usage of getActiveI18n and related locale handling in various components and stores.
- Updated translation handling to use a new instance creation method.
- Cleaned up unused imports and code related to language detection and cookie management.
- Adjusted components to directly utilize the new translation setup.

package.json

@@ -10,6 +10,7 @@
     "tail": "wrangler tail"
   },
   "dependencies": {
+    "@hono/node-server": "^1.19.11",
     "@pinia/colada": "^0.21.7",
     "@unhead/vue": "^2.1.10",
     "@vueuse/core": "^14.2.1",