[SUBTASK]-Create Group Creation Screen

[SturmDerLiebe]

Ressources

• Sketch: https://www.figma.com/design/q5QkaCsXuGn3XACfOWjdHa?node-id=419-6283#1139620360

#Tasks

1. Create the Group Creation Screen in app/group/creation/page.tsx
2. Try to mimic the App Design to a reasonable extend, since on Desktop and MobileWeb some things feel better if combined on one screen.
   1. The Input element can be derived from the base input component used in the Registration Screen
   2. Hint: Check if Emojis work here
3. Use the create group method of GroupRepository