feat: enhance file upload component and backend schema

- Updated the FileUpload component to improve file handling and state management, including better cancellation logic and input handling.
- Added a new alias in the Svelte configuration for easier backend access.
- Enhanced the backend schema to include a gestorSuperiorId for better team management and query capabilities.
- Refactored queries and mutations in the backend to support the new structure and improve data retrieval for subordinate teams.

apps/web/svelte.config.js

@@ -12,6 +12,9 @@ const config = {
 		// If your environment is not supported, or you settled on a specific environment, switch out the adapter.
 		// See https://svelte.dev/docs/kit/adapters for more information about adapters.
 		adapter: adapter(),
+		alias: {
+			'@sgse-app/backend': '../../packages/backend',
+		},
 	},
 };