Pins the roles submenu to the user permission row

[mgdelacroix]

Summary

Adds an option to the openUp util to force the alignment to the bottom and uses it to pin the roles submenu to the user permission row.

Ticket Link

Fixes #3885

[harshilsharma63]

LGTM 👍

[mattermod]

Cherry pick is scheduled.

[mattermod]

Error trying doing the automated Cherry picking. Please do this manually

+++ Updating remotes...
Fetching upstream
Failed to add the RSA host key for IP address '140.82.112.4' to the list of known hosts (/app/.ssh/known_hosts).
From github.com:mattermost/focalboard
   5bf40393..a69b0a44  main        -> upstream/main
   3debe231..51ff7b48  release-7.3 -> upstream/release-7.3
Fetching origin
Failed to add the RSA host key for IP address '140.82.112.4' to the list of known hosts (/app/.ssh/known_hosts).
+++ Updating remotes done...
+++ Creating local branch automated-cherry-pick-of-focalboard-#3925-upstream-release-7.3-1664945547
Switched to a new branch 'automated-cherry-pick-of-focalboard-#3925-upstream-release-7.3-1664945547'
Branch 'automated-cherry-pick-of-focalboard-#3925-upstream-release-7.3-1664945547' set up to track remote branch 'release-7.3' from 'upstream'.

+++ About to attempt cherry pick of PR #3925 with merge commit a69b0a44dc0692d402b248efd754c6ecee479121.

error: could not apply a69b0a44... Pins the roles submenu to the user permission row (#3925)
hint: after resolving the conflicts, mark the corrected paths
hint: with 'git add <paths>' or 'git rm <paths>'
hint: and commit the result with 'git commit'

+++ Conflicts detected:

UU webapp/src/widgets/menu/menuUtil.ts
Aborting.

+++ Aborting in-progress git cherry-pick.

+++ Returning you to the main branch and cleaning up.