Allow the namespace filter to be selected after making selection in the dropdown

[rak-phillip]

Summary

This adds a @click event handler to the namespace filter input. Doing this allows the input to be selected after making a selection in the dropdown.

Fixes #11928

Occurred changes and/or fixed issues

• Add a @click handler to ns-filter-input input

Technical notes summary

This regression was introduced in #11762, which added a @click.prevent handler to prevent multiple events from quickly toggling the namespace filter dropdown from opened to closed.

An alternative solution to this PR would be to revert the change made in #11762 and redesign the solution entirely. I thought the solution presented in this PR to be more straightforward, the tradeoff being that it requires the special case for the @click handler.

Areas or cases that should be tested

• Namespace Filter

Areas which could experience regressions

• NA

Checklist

• The PR is linked to an issue and the linked issue has a Milestone, or no issue is needed
• The PR has a Milestone
• The PR template has been filled out
• The PR has been self reviewed
• The PR has a reviewer assigned
• The PR has automated tests or clear instructions for manual tests and the linked issue has appropriate QA labels, or tests are not needed
• The PR has reviewed with UX and tested in light and dark mode, or there are no UX changes

[cnotv]

LGTM

Kapture.2024-09-19.at.07.34.26.mp4

[cnotv]

LGTM