[$35]Challenge Listings - Search : Must have a X button to clear search

[SathyaJayabal]

Describe the bug
The challenge search input must have a X button to clear the search

To Reproduce
Steps to reproduce the behavior:

1. go to challenge listing page
2. type any keyword in the search box and click on search button
3. challenge list is updated to show search results

Actual: There is no x button to clear the search. The user either has to delete the search keyword and search again or use clear filter button to clear the search

Expected: There should be a X button to clear the search.

Please make PR against https://github.com/topcoder-platform/community-app/tree/hot-fix-x-button-to-clear-search

[crazyk07]

Contest https://www.topcoder.com/challenges/30122325 has been created for this ticket.

This is an automated message for crazyk via Topcoder X

[crazyk07]

Contest https://www.topcoder.com/challenges/30122325 has been updated - it has been assigned to Narekvar90.

This is an automated message for crazyk via Topcoder X

[narekcat]

I added X button to clear the search. This is the PR for this issue: #4255. The CircleCI test's fails, because of automatically generated class names. Is it normal ? How can it be fixed ?