34060 Simply general project settings to use expanded panels

What does this MR do?

Changes general project settings format to use setting panels, removes two column layout.

Screenshots (if relevant)

Reviewer double check:

• All sections save
• Validations work as intended
• Expand/collapse function correctly

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• Documentation created/updated
• API support added
• Tests
  • Added for this feature/bug
  • All builds are passing
• Conform by the merge request performance guides
• Conform by the style guides
• Branch has no merge conflicts with master (if it does - rebase it please)
• Squashed related commits together

What are the relevant issue numbers?

Closes #34060 (closed)