feat: Implement command flag management for rclone configurations

- Added functionality to manage command flags and their values in the configuration form.
- Updated the database schema to include a new field for storing command flag values.
- Enhanced backend logic to process and store flag values for non-boolean flags during configuration creation and updates.
- Improved the user interface to dynamically require destination fields based on selected commands.
- Refactored related templates and handlers to support the new command flag management features.

components/user_edit.templ

@@ -198,44 +198,3 @@ templ UserEdit(ctx context.Context, data UserEditData) {
 		</div>
 	}
 }
-
-// JavaScript to handle URL parameters for displaying messages
-script handleUrlParams() {
-	document.addEventListener('DOMContentLoaded', function() {
-		const params = new URLSearchParams(window.location.search);
-		const error = params.get('error');
-		const details = params.get('details');
-		const status = params.get('status');
-		
-		if (error) {
-			const errorMsgEl = document.getElementById('error-message');
-			const errorTitleEl = errorMsgEl.querySelector('.error-title');
-			const errorDetailsEl = errorMsgEl.querySelector('.error-details');
-			
-			errorTitleEl.textContent = error;
-			if (details) {
-				errorDetailsEl.textContent = details;
-			} else {
-				errorDetailsEl.textContent = '';
-			}
-			
-			errorMsgEl.classList.remove('hidden');
-			
-			// If notyf is available, use it
-			if (window.notyf) {
-				window.notyf.error(error);
-			}
-		}
-		
-		if (status) {
-			const statusMsgEl = document.getElementById('status-message');
-			statusMsgEl.textContent = status;
-			statusMsgEl.classList.remove('hidden');
-			
-			// If notyf is available, use it
-			if (window.notyf) {
-				window.notyf.success(status);
-			}
-		}
-	});
-}