webui: Add setting to always show sidebar on Desktop (#17809)
* feat: Add setting to always show Sidebar on Desktop
* chore: update webui build output
* feat: Add auto-show sidebar setting
* fix: Mobile settings dialog UI
* chore: update webui build output
* feat: UI label update
* chore: update webui build output
* chore: update webui build output
* chore: update webui build output
* refactor: Cleanup
* chore: update webui build output
