[officialMECH]

This PR contains smaller fixes for various bugs that were discovered since the last update, primarily caused by regressions in upstream dependencies and oversights from prior refactoring work.

Technical Changes

• Upgraded bsmap to latest, which offers support for Halloween2026Environment, new color scheme presets, and upstream fixes for beatmap processing logic and schema validation.

Bugfixes

• The difficulty selector is now visible in the Lightshow view for better consistency across all editor views.
  • This capability was originally unsupported due to reconcilation issues when sharing lightshow data across beatmaps, but now that these issues are (from what I can tell) reliably fixed, it makes sense to allow this capability moving forward.
• The "decrement zoom level" action now sends the correct format for payloads, and should now work as intended.
• The "event update rate" field now sends the correct format for payloads, and should now work as intended.
• Releasing the event selection box outside of the event grid trigger will now commit selection.
• The "mirror selection" action for objects now applies the correct grid dimensions between notes and obstacles.
• Hovering the cursor over multiple objects will now properly block event propagation at the first targeted object.
• Firing object modification actions via scroll wheel will no longer duplicate history events due to faulty propagation.
• Undo/redo actions will now incorporate comparisons for all object properties rather than strictly by IDs, since the latter made it difficult to track history for non-indexed properties (i.e. note color and direction, obstacle duration, etc).