[stable29] fix(sidebar): use open state to remove always working focus trap on mobile

[backportbot[bot]]

Backport of #12387

Warning, This backport's changes differ from the original and might be incomplete ⚠️

Todo

• [x] Review and resolve any conflicts
• [x] Amend HEAD commit to remove the line stating to skip CI

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Learn more about backports at https://docs.nextcloud.com/server/stable/go.php?to=developer-backports.

[ShGKme]

/backport to stable28

[DorraJaouad]

Sidebar is not closing

[Antreesy]

Bumped a library as per server, that seem to have been an issue:

8.13	8.14