feat: Enhance Rclone command configuration with pre-rendered flags and region support

- Added fields for pre-rendering flags in the config form, allowing for better user experience during edits.
- Updated Rclone command options to accept current command ID for pre-selection.
- Introduced region input fields for MinIO source and destination forms, enhancing configuration flexibility.
- Modified backend logic to handle region parameters when generating Rclone configurations.
- Improved flag handling by parsing selected flags and values for better state management in the UI.

components/providers/source/minio.templ

@@ -39,6 +39,22 @@ templ MinIOSourceForm() {
 			</p>
 		</div>
 
+
+		<div class="mb-6">
+			<label for="source_region" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">Region (Optional)</label>
+			<div class="relative">
+				<div class="absolute inset-y-0 start-0 flex items-center ps-3.5 pointer-events-none">
+					<i class="fas fa-globe-americas text-gray-400 dark:text-gray-500"></i>
+				</div>
+				<input type="text" id="source_region" name="source_region" x-model="sourceRegion"
+					class="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full ps-10 p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500"
+					placeholder="us-east-1" />
+			</div>
+			<p class="mt-2 text-sm text-gray-500 dark:text-gray-400">
+				Optional: Specify the region if your MinIO setup requires it.
+			</p>
+		</div>
+
 		<div class="mb-6">
 			<label for="source_access_key" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">Access Key</label>
 			<div class="relative">