Adds new routes and URL parameters to use when viewing and performing searches on library components. These changes allow these pages to be bookmarked or shared by copy/pasting the browser's current URL.
No changes were made to the UI.
Use cases covered:
* As an author working with content libraries, I want to easily share any component in a library with other people on my team, by copying the URL from my browser and sending it to them.
* As an author working with content libraries, I want to easily share any search results with other people on my team, by copying the URL from my browser and sending it to them.
* As an author working with content libraries, I want to bookmark a search in my browser and return to it at any time, with the same filters and keywords applied.
* As an author of a content library with public read access, I want to easily share any component in a library with any authors on the same Open edX instance, by copying the URL from my browser and sending it to them.
* As an author of a content library, I want to easily share a library's "Manage Team" page with other people on my team by copying the URL from my browser and sending it to them.
* As an author working with content libraries, I want to easily share any selected sidebar tab with other people on my team, by copying the URL from my browser and sending it to them.
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