[Eray] Implementation of the Post Creation Page

[ErayEroglu]

• There is an existing design for the frontend, it must be improved and some functionalities must be added.
• The page is not connected to the backend yet, the integration must be done

You may split the issue to tasks if necessary

• [x] Design update
• [x] Backend integration

Deadline: 24.11.2024 Estimated effort: 3 hrs Reviewer: @Mutti499

[ErayEroglu]

The current version also had this problem, I am planning to start with fixing the error

[ErayEroglu]

I integrated the page with backend, updated the dependencies to solve the error above and created a PR