When scheduling appointment on mobile, difficult to submit form

Steps to reproduce

1. create an appointment schedule
2. in a private browser window or a different browser on your mobile phone, visit the appointment schedule and attempt to schedule an appointment
3. discover how hard it is to find the submit button.

Expected behavior

The layout of the page should be responsive, so the button to submit the form is visible and easy to find even when the keyboard is open.

Actual behavior

The submit button is hidden off to the right at the top, only accessible after closing the keyboard. Here's a screen recording from my iphone:

https://github.com/user-attachments/assets/36e8e1dd-8406-42f5-b455-3d4cbaa3395f

Calendar app version

6.5.0

CalDAV-clients used

No response

Browser

Chrome 149.0.7827.137

Client operating system

ios

Server operating system

ubuntu

Web server

Nginx

Database engine version

None

PHP engine version

None

Nextcloud version

34.0.1

Updated from an older installed version or fresh install

None

List of activated apps

Nextcloud configuration

Web server error log

Log file

Browser log

Additional info

No response

Start by reproducing the appointment form on an iPhone or mobile Chrome while the keyboard is open, then inspect the responsive layout around the scheduling form. Done means the submit button remains visible and easy to find without closing the keyboard.