Improve utiLITI editor usability and runtime resilience

[steffen-wilke]

Summary

• Add responsive, collapsible editor panels and compact toolbar controls for narrow window sizes.
• Preserve usable editor dimensions and restore layouts correctly after resizing.
• Improve map-object hit testing so selection follows visible sprite pixels and overlapping collision boxes.
• Close script tabs when projects change, protect unsaved scripts, and show a non-editable empty state when no script is open.
• Generate Markdown documentation in new script templates and remove the recently introduced deprecated lifecycle aliases.
• Improve undo and project-status toast feedback.
• Handle missing sprite names and unavailable game cameras without crashing.

Testing

• ./gradlew test --no-daemon
• ./gradlew spotlessCheck --no-daemon
• git diff --check