Small improvement

This release includes some small improvements.

Changelog

• Added a demo project. Thanks to Loser Gubitnik
• Desktop: Projects will now be sent to trash instead of being deleted
• Android: You can now share projects
• Android: The Projects folder has been moved. To open your old projects: Open project > Press the top-right button > Navigate to Documents/MusicDJ/Projects/ and open all of them one by one. They will be copied to the new location.
• Android: Exports are now saved to Music/MusicDJ/
• Android: You can copy projects to the Download folder.
• Android 10+: Removed unnecessary permissions
• HTML5: Hi-DPI support. Now the app should look a lot sharper
• Fixed a few minor issues
• Updated to Godot 3.5 (stable)

Known issues

• Spamming Play leads to weird behaviour
• Windows: Icon may be blurry

Original MusicDJ MIDI files support is coming

I've been working on implementing a MIDI parser for original MusicDJ files. The goal is to make it fully interoperable with the SE version.
If there is anyone willing to help, let me know.
The PR: #13