Hotfix: 0.4.1

[officialMECH]

This is a hotfix release primarily consisting of bugfixes for the various issues and user reports we got over the past month or so:

Bugfixes

• The migration flow for local/session storage will now use the proper key mappings in production environments, which should fix irregular states when updating from 0.3.1 and older.
• The floating menus for Menu and Select components are now scrollable when they overflow the window.
• All window.prompt calls have been replaced by native dialogs for better support in PWA environments (fixes Add dedicated component for alert dialogs #13).
• The accepted MIME types for the map archive file uploader have been updated to reflect valid archive types for non-Windows operating systems (fixed in #12 Fix broken 'Import existing map' for macos/linux zip files #14).
• Exporting maps to v4 format will now polyfill a bpm change by default, which prevents the map from breaking in-game.
• Exporting maps to v4 format with Mapping Extensions data will now throw an error for lack of proper support.
• Lightshow data is now properly applied when exporting to v1/v2/v3 formats.
• The placement behavior for full height obstacles now uses the correct scaling.
• The "mirror" actions now properly support Mapping Extensions values and custom grids.
• Many upstream issues within the bsmap engine have been fixed with its most recent update:
  • The _type field for v1/v2 obstacles no longer fails schema validation when using Mapping Extensions ranges.
  • Importing a v2 difficulty with Mapping Extensions data will now convert the _type field for obstacles into their equivalent posY and height values.
    • As a result, obstacles with Mapping Extensions values should now have more accurate visualizations.
  • Event tracks now use the correct labels and mappings for the selected environment
    • The labels have also been updated across older environments to reflect the more descriptive labels used within the Official Editor.
  • The _levelAuthorName field for v2 info serialization will now split more conjuctions ("and", "vs.", etc).
  • The spawnRotations field for v4 difficulty serialization is now omitted due to the property being officially deprecated, which should hopefully fix any upstream validation issues with BeatSaver.