Sprint Poker: GitLab v2: Advanced search logic part 1

[nickoferrall]

Predecessor: #6294

There are 10 filter options in GitLab's dropdown menu, from "Assignee" to "Weight". If the user types into the search input and no filter option match what they've typed, “Search for this text” filter option is displayed, taking the total filter options to 11.

AC:

• For the first six filter options, from "Assignee" to "Label", filter the GitLab issues displayed by the filters the user selects. The remaining five will be done in the following issue.
• The filtering only happens once the user submits the input. This differs from our GitHub, Jira, Parabol task implementations, and our initial GitLab integration (see Sprint Poker: GitLab v1: Search issues #6045) that filters after each keystroke.

Note: there could be many authors or release versions which might make the menu feel a touch slow. A caching strategy will be handled in #6052

[nickoferrall]

As this issue was scored at 21 points, I've split it up into two issues. In this issue, we implement the logic for the first six filter options. In the next issue, we implement the remaining five and update the URL.

[github-actions]

Stale issue