Make confirmation dialogs consistent

[mlqn]

Description

We use different confirmation dialogs across the solution, which slightly affects the user experience due to the lack of uniformity

https://github.com/Altinn/altinn-studio/assets/24462611/c1eb845b-8806-4447-8138-72975e595fb7

Additional Information

No response

### Tasks
- [ ] Create StudioDeletePopover component
- [ ] Replace all usage of native confirm dialog and current Popovers with StudioDeletePopover