Resolves#4248
## Description:
Fix river not connected in Balkans map along the map border. The map
generator accidentally deleted some columns of pixels along the map
limits, and it disconnected a river.
<img width="588" height="482" alt="image"
src="https://github.com/user-attachments/assets/2c78b6bd-d669-4aef-bc1d-c69d4aeed162"
/>
Updated version
<img width="290" height="311" alt="image"
src="https://github.com/user-attachments/assets/f315bdfc-bcca-400d-95a7-876c14e47400"
/>
## Please complete the following:
- [x] I have added screenshots for all UI updates
- [x] I process any text displayed to the user through translateText()
and I've added it to the en.json file
- [x] I have added relevant tests to the test directory
## Please put your Discord username so you can be contacted if a bug or
regression is found:
tri.star1011
## Description:
Adds map of the Balkan Peninsula and surroundings. Heavily requested map
with multiple posts on the Discord all with over 10 or 20 upvotes.
23 NPC/Nations based on countries and relevant regions of the area. Adds
an extra 39 nations for crowded Humans vs Nations gamemode for a total
of 62 NPCs, based on regions of multiple countries. Also some flags for
some regions.
Source from NASA DEM, already credited
Photo of base map, and 62 HvN:
<img width="614" height="588" alt="Captura de pantalla 2026-05-24
030105"
src="https://github.com/user-attachments/assets/5742a4c3-1b1f-4ca7-858d-91529861dd81"
/>
<img width="548" height="547" alt="image"
src="https://github.com/user-attachments/assets/758d8ad0-1515-41b8-8d42-14e76cdd54ed"
/>
This map completes the quartet row of "polemic" maps for v32
<img width="678" height="119" alt="image"
src="https://github.com/user-attachments/assets/9e6f4ef1-f0cc-48ea-a59f-b7ff69033b73"
/>
## Please complete the following:
- [x] I have added screenshots for all UI updates
- [x] I process any text displayed to the user through translateText()
and I've added it to the en.json file
- [x] I have added relevant tests to the test directory
- [x] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced
## Please put your Discord username so you can be contacted if a bug or
regression is found:
tri.star1011
RickD004