feat: implement inbox sidebar for enhanced user notifications

- Introduced a new InboxSidebar component to manage and display inbox items.
- Integrated real-time syncing of inbox items using Electric SQL for instant updates.
- Added functionality to mark items as read, archive/unarchive, and filter inbox content.
- Updated existing components to accommodate the new inbox feature, including layout adjustments and state management.
- Enhanced user experience with improved navigation and interaction for inbox items.

surfsense_web/messages/en.json

@@ -692,7 +692,22 @@
 		"light": "Light",
 		"dark": "Dark",
 		"system": "System",
-		"logout": "Logout"
+		"logout": "Logout",
+		"inbox": "Inbox",
+		"search_inbox": "Search inbox",
+		"mark_all_read": "Mark all as read",
+		"mark_as_read": "Mark as read",
+		"mentions": "Mentions",
+		"status": "Status",
+		"no_results_found": "No results found",
+		"no_mentions": "No mentions",
+		"no_mentions_hint": "You'll see mentions from others here",
+		"no_status_updates": "No status updates",
+		"no_status_updates_hint": "Document and connector updates will appear here",
+		"filter": "Filter",
+		"unread_and_read": "Unread & read",
+		"unread": "Unread",
+		"archived": "Archived"
 	},
 	"errors": {
 		"something_went_wrong": "Something went wrong",