[TASK] ADWD-1295 (and others) Changed layout and bevahior of Kloster form

- Rewrote parts of populate.js for easier data handling
- Rewrote handlers for multi-value form sections
- Changed KlosterController (format of URLs and last change data)
- Fixed a bug that caused the form to be submitted when geopicker was closed
- Finalized form layout, decreased margins of all elements
- Highlighted "Status" area
- Several small style fixes