Add Achiran (#2280)

## Description:

Describe the PR.
Adds the Halloween Special Map - Achiran. It has 4 nations and will be
playable in game for a period of around 2 weeks during the Halloween
event.

## 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:

DISCORD_USERNAME
Nikola123

src/client/components/Maps.ts

@@ -36,6 +36,7 @@ export const MapDescription: Record<keyof typeof GameMapType, string> = {
   Yenisei: "Yenisei",
   Pluto: "Pluto",
   Montreal: "Montreal",
+  Achiran: "Achiran",
 };
 
 @customElement("map-display")

src/core/configuration/DefaultConfig.ts

@@ -48,6 +48,7 @@ const numPlayersConfig = {
   [GameMapType.Africa]: [100, 70, 50],
   [GameMapType.Asia]: [50, 40, 30],
   [GameMapType.Australia]: [70, 40, 30],
+  [GameMapType.Achiran]: [40, 36, 30],
   [GameMapType.Baikal]: [100, 70, 50],
   [GameMapType.BetweenTwoSeas]: [70, 50, 40],
   [GameMapType.BlackSea]: [50, 30, 30],

src/core/game/Game.ts

@@ -95,6 +95,7 @@ export enum GameMapType {
   Yenisei = "Yenisei",
   Pluto = "Pluto",
   Montreal = "Montreal",
+  Achiran = "Achiran",
 }
 
 export type GameMapName = keyof typeof GameMapType;
@@ -135,6 +136,7 @@ export const mapCategories: Record<string, GameMapType[]> = {
     GameMapType.Pluto,
     GameMapType.Mars,
     GameMapType.DeglaciatedAntarctica,
+    GameMapType.Achiran,
   ],
 };
 

src/server/MapPlaylist.ts

@@ -24,6 +24,7 @@ const frequency: Partial<Record<GameMapName, number>> = {
   Africa: 7,
   Asia: 6,
   Australia: 4,
+  Achiran: 14,
   Baikal: 5,
   BetweenTwoSeas: 5,
   BlackSea: 6,