[Bug]: Exit button in "more details" screen for calendar events is not grouped with other elements

⚠️ This issue respects the following points: ⚠️

• This is a bug, not a question or a configuration/webserver/proxy issue.
• This issue is not already reported on Github OR Nextcloud Community Forum (I've searched it).
• Nextcloud Server is up to date. See Maintenance and Release Schedule for supported versions.
• I agree to follow Nextcloud's Code of Conduct.

Bug description

In the "more details" field of a new calendar event, the exit button is not grouped with other fields leading to it being moved to the far right of the screen, which doesn't look good. See below for my experience on ultrawide.

Steps to reproduce

1. Create a new event
2. Click "more details"
3. Observe the location of the exit button

Expected behavior

If all fields are grouped together in the center of the display, the exit button should be with them.

Nextcloud Server version

32

Operating system

Debian/Ubuntu

PHP engine version

PHP 8.3

Web server

Apache (supported)

Database engine version

PostgreSQL

Is this bug present after an update or on a fresh install?

None

Are you using the Nextcloud Server Encryption module?

Encryption is Disabled

What user-backends are you using?

• Default user-backend (database)
• LDAP/ Active Directory
• SSO - SAML
• Other

Configuration report

List of activated Apps

Nextcloud Signing status

Nextcloud Logs

Additional info

No response

Start by reproducing the issue in the calendar event's "more details" screen, then trace the frontend component that lays out the event fields and exit button. The work is done when the exit button remains grouped with the centered fields on ultrawide displays and the reproduction steps no longer show the misalignment.