feat: add data export functionality to settings page and update admin reports table

- Introduced "Export Data" card in settings for exporting user data as a JSON file.
- Added `exportData` method to `UserService` for handling data export requests.
- Updated admin reports table with a new "Cible" column to display target information.

frontend/src/services/user.service.ts

@@ -53,4 +53,9 @@ export const UserService = {
 		});
 		return data;
 	},
+
+	async exportData(): Promise<any> {
+		const { data } = await api.get("/users/me/export");
+		return data;
+	},
 };