fix: use "Recently Modified" as the default sort option
When search keyword(s) are entered, use "Most Relevant" as default.
Also
* Hides "Most Relevant" option if no keyword is entered.
* Re-orders the sort menu options
* Ensures the default sort option is not stored in the query string
* Shows the selected sort option on the drop-down toggle button
* Shows "Sort By" as a header inside the drop-down menu
* fix: discard changes
* refactor: disable discard btn for new libs
Enable it if components are added.
* refactor: invalidate library related content queries
* chore: add comment about content search query invalidation
* fix: Hide open Create content buttons without permissions
* feat: Read only badge on library Home
* refactor: library authoring to get canEditLibrary from useContentLibrary
* style: Typo on the code
