* refactor: update sidebar components and styles, replace TitleBar with SidebarHeader, and enhance collections search functionality
* refactor: improve event listener management in AppTitleBar and clean up SidebarHeader styles
* fix: ensure safe access to layout preferences in AppTitleBar and set default order in SidebarHeader
* refactor: centralize toTitleCase utility and remove redundant implementations in AppTitleBar and WorkspaceSelector
* feat: enhance accessibility and testing for sidebar and devtools toggle buttons in AppTitleBar
* chore: quick fix on a flaky test
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Co-authored-by: Bijin A B <bijin@usebruno.com>
