Fix several save-button misplacements in the event and series details

[marwyg]

This PR fixes several button misplacements when editing data in the event and series details:

• Event Metadata
• Event Extended Metadata
• Event Scheduling
• Event Workflow
• Event ACL
• Series Metadata
• Series Themes
• Series ACL
• maybe more

Fixes (at least): #531, #527 and #570

To test, click through all possible tabs of existing events, series (and maybe something else?) and change data. Then take a look on the save and cancel button if something is misplaced.

[github-actions]

This pull request is deployed at test.admin-interface.opencast.org/572/2024-06-04_13-34-15/ .
It might take a few minutes for it to become available.

[github-actions]

Use docker or podman to test this pull request locally.

Run test server using develop.opencast.org as backend:

podman run --rm -it -p 127.0.0.1:3000:3000 ghcr.io/opencast/opencast-admin-interface:pr-572

Specify a different backend like stable.opencast.org:

podman run --rm -it -p 127.0.0.1:3000:3000 -e PROXY_TARGET=https://stable.opencast.org ghcr.io/opencast/opencast-admin-interface:pr-572

It may take a few seconds for the interface to spin up.
It will then be available at http://127.0.0.1:3000.
For more options you can pass on to the proxy, take a look at the README.md.

[ferishili]

Please add #570 here as well
Series ACL should also be affected, if not please check!

[ziegenberg]

Nice, we even got testing instructions! 🥳

[marwyg]

Please add #570 here as well Series ACL should also be affected, if not please check!

The series ACL should be corrected, too.

[ziegenberg]

This is still broken on Event/Comments

[marwyg]

This is still broken on Event/Comments

There were another Issue for this #540 and should be fixed with this PR #565

[ziegenberg]

Yeah, I just saw #565.

[ziegenberg]

Looking good now.