Yenisei map (#1517)

## Description:
This is a map of the Yenisei Bay in Russia. It contains 6 nations and
should be all compatable with all of the new map stuff. It has a size of
2000x2500 (which also means that it's larger vertically)

Describe the PR.

## 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
- [ ] I have read and accepted the CLA aggreement (only required once).

## Please put your Discord username so you can be contacted if a bug or
regression is found:

DISCORD_USERNAME
Nikola123

src/server/MapPlaylist.ts

@@ -45,6 +45,7 @@ const frequency: Partial<Record<GameMapName, number>> = {
   Halkidiki: 1,
   StraitOfGibraltar: 1,
   Italia: 1,
+  Yenisei: 1,
   Pluto: 1,
 };