[Mobile] Update and Fix some minor issues

[AlicanM]

I will update the event information table and remove the unused buttons.

• [x] update event page
• [x] remove unused buttons

Due Date: 27.12.2022 Reviewer: @canatakan

[AlicanM]

Created the PR

[canatakan]

I have just merged your pull request after contribution a couple of changes. This issue can be closed now.