Fix screenshots for apple

[ztefanie]

Is your feature request related to a problem? Please describe.
Newest integreat release was rejected due to wrong informations on the screenshots. See here

Review Environment
Submission ID: 4169418b-c2a5-418a-bb7a-331985c079a2
Review date: May 27, 2024
Version reviewed: 2024.5.1
Guideline 2.3.7 - Performance - Accurate Metadata
The app screenshots include references to the price of the app or the service it provides, which is not considered a part of these metadata items.
Next Steps
To resolve this issue, please remove any references to pricing from the app's screenshots, including any references to the app or service being free or discounted. If you would like to advertise changes to the app's price, consider including this information in the app description.
Resources
For information on how to revise the app name, please review Renaming a Project or App.
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Describe the solution you'd like
Fix the issue, by adding adjusted screenshots.

Describe alternatives you've considered
Contact apple support and convince them to accept the screenshots.

Additional context
Maybe we need help from uiux to create new screenshots

[hauf-toni]

New Screens can be found here: Nextcloud

[hauf-toni]

I recreated the ipad screens - i couldn't replicate the colour gradient in the background exactly. the source file + the screens are available here

[nikolahoff]

@steffenkleinle does this work? Then I can export the others as well

[nikolahoff]