Revise platform support details in README

Add platform section to bug report template

Add TestFlight link to README.md

Add QQ Group button in README.md

3.11.0

fix: add definitive release trailer video links

Fix crashing after moving selection under all layers

fix: add button to open release video on changelist window

fix: outdated help text in import sounds window

Merge pull request #491 from u3002/development

Update midi_instruments.gml

Update midi_instruments.gml

Updated the instrument names and the mapping table.

fix: filename not appearing when opening song after downloading song

fix: use file name as player mode title if song title not present