feat: Add clear filter btn to filter widget

[yusuf-musleh]

Description

This PR adds the ability to clear a specific filter through a "Clear Filter" button in the widget, leaving the applied filters in other widgets unchanged.

Supporting Information

• Related Issue: Library Home - Filter by Tags openedx/frontend-app-authoring#1048

Testing Instructions

1. Run this branch in your local env
2. Navigate to a Content Library you already have (make sure you have a few components in that Content Library, ideally in different types)
3. Make sure you have some tags applied to those components
4. Confirm that the "Filter Tags" buttons appears at the bottom of the dropdown after applying a filter (similar to screenshot above)
5. Confirm that clearing filters in one widget does not clear the applied filters in the other widget

---

Private-ref: FAL-3763

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.65%. Comparing base (dfd3190) to head (3400f71).

Additional details and impacted files

@@                                  Coverage Diff                                  @@
##           rpenido/fal-3764-library-home-filter-by-content-type      #47   +/-   ##
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  Branches                                                   2706     2707    +1     
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  Hits                                                      11457    11457           
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  Partials                                                     32       32           

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[rpenido]

Hi @yusuf-musleh! This is looking good to me. 👍
Let me know if it is ready to merge!

[yusuf-musleh]

@rpenido Great! Yes, it should be good to merge.