Enable HAML-LINT linters

Closes #22072

See merge request !8247

Improved the u2f flow

Closes #18556

See merge request !8304

Make tabs full-width at small viewport

Closes #26201

See merge request !8369

Fix failures in default sort order spec

See merge request !8379

Fix redirect after update file when user has forked project

Closes #25578

See merge request !8371

Test cases were not waiting for page load after clicking.
This caused failures in test cases that were executed right after
these incorrect ones, because of requests hitting server after
a test was finished.
We do not have to click links, we can go directly to a correct page
by passing parameters in the URL.