v2.0.0-beta.1

Full rewrite of the extension, with easier to understand logic and code.

• Merged source menu and popup menu (with new design)
• Updated preferences to use user friendly widgets
• Removed unnecessary and redundant preferences (if you miss a removed preference, feel free to open an issue)
• The codebase has been ported to typescript
• The code logic has been rewritten to be more straightforward