Minor bug fixes

First edition

Minor bug fixes

- Added dedicated schema refresh button in settings
- Fixed issue where some local schema files were not parsed correctly

- Support for custom schema urls and local schema files
- Settings for editor indentation
- Fixed a new line editor crash
- Pasted text no longer maintains styling attributes

- View possible types for union and interface types
- Show exact search match at the top
- Fix undo not working after opening brace and new lines