iOS/iPad: Improve the Homescreen

* I dont use DropBox. Import works only for Dropbox. Please add also iCloud
support or give us a option to hide this Icon.

* Same for the Desktop Icon. Just opens a Webpage for me. This icon is just
bloating the UI.

* The Homescreen is weakest point of the app. Please take a look on
"procreate" or "Affinity Photo". They managed to create a clean Homescreen.
What can you guys do? Reduce the Logo and Icon size. Remove the Background
Image.
Remove the "Template" tab. They should be part of the "create new" dialog.