Convert issue board switcher to gitlab-ui dropdown components
What does this MR do?
Switch to gitlab-ui dropdown components (gitlab-ui!83 (merged)) for the issue board switcher.
This adds keyboard navigation and a "Switch board" header and removes the duplicate scrollbar.
What are the relevant issue numbers?
closes https://gitlab.com/gitlab-org/gitlab-ee/issues/8855
closes https://gitlab.com/gitlab-org/gitlab-ee/issues/9088
Screenshots
Does this MR meet the acceptance criteria?
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Changelog entry added, if necessary -
Documentation created/updated -
Tests added for this feature/bug -
Conforms to the code review guidelines -
Conforms to the merge request performance guidelines -
Conforms to the style guides -
Conforms to the database guides -
Link to e2e tests MR added if this MR has Requires e2e tests label. See the Test Planning Process. -
EE specific content should be in the top level /ee
folder -
For a paid feature, have we considered GitLab.com plans, how it works for groups, and is there a design for promoting it to users who aren't on the correct plan?
Edited by Inactive Account