- Introduce a new screen for importing and merging database schemas.
- Implement merge logic to combine schemas, tables, columns, and other objects.
- Add options to skip specific object types during the merge process.
- Update main menu to include the new import and merge option.
* Add schema management screen with list and editor
* Implement table management screen with list and editor
* Create data operations for schema and table management
* Define UI rules and guidelines for consistency
* Ensure circular tab navigation and keyboard shortcuts
* Add forms for creating and editing schemas and tables
* Implement confirmation dialogs for destructive actions
