[Feature]: Draw selected region border and auto-fit to view

**Platform:** Other

**Description:**
When a region is selected:

Draw the region border on the map.
Make the selected region clearly visible.
Automatically fit the full border into view.

**Discord:** https://discord.com/channels/1463383723327356992/1486889617830576148/1518268998767083691

Submitted by: jesper02 (Discord)