feat: enhance analytics and performance tracking with real data metrics

- Integrate real page view data from the database for accurate analytics.
- Implement cache-busting for fresh data retrieval in analytics dashboard.
- Calculate and display bounce rate, average session duration, and unique users.
- Refactor performance metrics to ensure only real data is considered.
- Improve user experience with toast notifications for success and error messages.
- Update project editor with undo/redo functionality and enhanced content management.

app/manage/page.tsx

@@ -322,10 +322,10 @@ const AdminPage = () => {
                 {authState.isLoading ? (
                   <div className="flex items-center justify-center space-x-2">
                     <Loader2 className="w-5 h-5 animate-spin" />
-                    <span>Authenticating...</span>
+                    <span className="text-stone-50">Authenticating...</span>
                   </div>
                 ) : (
-                  <span>Sign In</span>
+                  <span className="text-stone-50">Sign In</span>
                 )}
               </button>
             </form>