Refactor and enhance UI components across multiple pages

- Improved import organization and formatting in PlaylistsPage, RegisterPage, SoundsPage, SettingsPage, and UsersPage for better readability.
- Added error handling and user feedback with toast notifications in SoundsPage and SettingsPage.
- Enhanced user experience by implementing debounced search functionality in PlaylistsPage and SoundsPage.
- Updated the layout and structure of forms in SettingsPage and UsersPage for better usability.
- Improved accessibility and semantics by ensuring proper labeling and descriptions in forms.
- Fixed minor bugs related to state management and API calls in various components.

src/types/auth.ts

@@ -45,4 +45,4 @@ export interface AuthContextType {
   logout: () => Promise<void>
   loading: boolean
   setUser?: (user: User | null) => void
-}
+}