feat: implement bug report submission with server upload functionality

- Updated documentation to include new API server details and configuration options.
- Enhanced `SubmitBugReport` method to attempt server upload and handle errors gracefully.
- Added `UploadBugReport` method to handle multipart file uploads to the API server.
- Introduced new API server with MySQL backend for managing bug reports.
- Implemented rate limiting and authentication for the API.
- Created database schema and migration scripts for bug report storage.
- Added admin routes for managing bug reports and files.
- Updated frontend to reflect changes in bug report submission and success/error messages.

frontend/messages/en.json

@@ -218,5 +218,8 @@
 	"pdf_error_no_data_desc": "No PDF data provided. Please open this window from the main EMLy application.",
 	"pdf_error_timeout": "Timeout loading PDF. The worker might have failed to initialize.",
 	"pdf_error_parsing": "Error parsing PDF: ",
-	"pdf_error_rendering": "Error rendering page: "
+	"pdf_error_rendering": "Error rendering page: ",
+	"bugreport_uploaded_success": "Your bug report has been uploaded successfully! Report ID: #{reportId}",
+	"bugreport_upload_failed": "Could not upload to server. Your report has been saved locally instead.",
+	"bugreport_uploaded_title": "Bug Report Uploaded"
 }