Fixes two cases:
- some apps (e.g., Zen browser use the "—" character at the end of
webpage name)
- in compact mode, when app has only appName, and not window name, we
should display the appName to avoid empty title.
- New background toggles
- New maxIcon & maxText widget sizes (global)
- Dedicated M3 padding slider
- New independent icon scale options
- Updated logic to improve performance on single & dual bar modes
* feat: add configurable app ID substitutions setting
* feat: add live icon updates when substitutions change
* fix: cursor not showing on headerActions in non-collapsible cards
* fix: address PR review feedback
- add tags for search index
- remove hardcoded height from text fields
Steam Proton games use window class steam_app_XXXXX. Steam installs
icons as steam_icon_XXXXX. This maps between them so actual game
icons display instead of generic controller fallback.
