v0.2.0 Beta 0

This is a beta release, primarily for me to test some things before a stable release. Some things are broken and this has not been thoroughly tested.

Changes since v0.1.0:

• Improved sandboxing and security
• Privacy policy updated to mention that some Scratch extensions may contact Scratch services
• Added simple cut/copy/paste context menu
• Fixed music extension
• Fixed text to speech extension
• Fixed splash screen dark mode preference
• Improved file pickers when exporting costumes, sounds, sprites, and video
• Updated TurboWarp: interpolation, various compiler bug fixes
• Updated addons
• Updated Electron to 12