### Steps to reproduce

* Have small device (eg. iPhone SE)

* Begin of the insertionTry to accessEnd of the insertion Begin of the deletion Download theEnd of the deletion OpenProject Begin of the insertion(web)End of the insertion Begin of the deletion mobile spike via TestFlight using the invitation codeEnd of the deletion

* Try to log in


### What is the buggy behavior?

* The login screen has an overlay that doesn't allow user input

* I cannot sign in and therefore cannot test the mobile app


#### Additional context:

* If I try to access Community directly using a web browser (Safari or Firefox for iOS), the page simply doesn't render anything

* I've tried accessing the page via 4G and WiFi; same results

* I have the "[Firefox Klar](https://support.mozilla.org/en-US/kb/what-firefox-klar-ios)" extension (privacy content blocker) installed and activated on my phone but the problem persists even if I disable it

* It seems it is a regression as users where able tu use the app on this devices before


### What is the expected behavior?

* I am able to log in to OpenProject via my mobile (using Testflight)


### Screenshots and other files

<img class="image_resized op-uc-image op-uc-image_inline" style="width:338px;" src="/api/v3/attachments/259377/content">

### <img class="image_resized op-uc-image op-uc-image_inline" style="width:336px;" src="/api/v3/attachments/259466/content">

### Environment information

**Community:**
OpenProject 15.1

**Devices:**
iPhone Begin of the insertionSE, iOS 18.2.1End of the insertion Begin of the deletion SEEnd of the deletion

**Browser:**
Safari on iOS (via TestFlight)

**Language**
EN