Contact details: Improve experience of adding a new property

[st3iny]

Is your feature request related to a problem? Please describe.

The "Add new property" section at the bottom could be improved visually. It makes more sense to use a button than a select for this.

Describe the solution you'd like

• [ ] Convert the select "Choose property type" to a button and expand it to full width (because it doesn't have a label). Clicking the button should show a popover containing all possible property options (-> using an Actions component with a :menu-title should work).
• [ ] Get rid of the section header "Add new property". A labeled button is self explanatory.

Describe alternatives you've considered

No response

Additional context

No response