Add the Lisbon Map and Credit Copernicus DEM (#2545)

## Description:

Adds a map based on Lisbon and the surrounding area. Also credits the
ESA's Copernicus Digital Elevation Model, which was used to create this
map and the Gulf of St. Lawrence map.

<img width="1257" height="1257" alt="screenshot of the new Lisbon map"
src="https://github.com/user-attachments/assets/39fa73da-c77d-4d5c-8d00-7ee2794d0298"
/>

## Checklist:

- [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

## Discord Username:

sehentsin

src/client/components/Maps.ts

@@ -39,6 +39,7 @@ export const MapDescription: Record<keyof typeof GameMapType, string> = {
   BaikalNukeWars: "Baikal (Nuke Wars)",
   FourIslands: "Four Islands",
   GulfOfStLawrence: "Gulf of St. Lawrence",
+  Lisbon: "Lisbon",
 };
 
 @customElement("map-display")

src/core/configuration/DefaultConfig.ts

@@ -69,6 +69,7 @@ const numPlayersConfig = {
   [GameMapType.Iceland]: [50, 40, 30],
   [GameMapType.Italia]: [50, 30, 20],
   [GameMapType.Japan]: [20, 15, 10],
+  [GameMapType.Lisbon]: [50, 40, 30],
   [GameMapType.Mars]: [70, 40, 30],
   [GameMapType.Mena]: [70, 50, 40],
   [GameMapType.Montreal]: [60, 40, 30],

src/core/game/Game.ts

@@ -102,6 +102,7 @@ export enum GameMapType {
   BaikalNukeWars = "Baikal (Nuke Wars)",
   FourIslands = "Four Islands",
   GulfOfStLawrence = "Gulf of St. Lawrence",
+  Lisbon = "Lisbon",
 }
 
 export type GameMapName = keyof typeof GameMapType;
@@ -136,6 +137,7 @@ export const mapCategories: Record<string, GameMapType[]> = {
     GameMapType.Japan,
     GameMapType.Montreal,
     GameMapType.GulfOfStLawrence,
+    GameMapType.Lisbon,
   ],
   fantasy: [
     GameMapType.Pangaea,

src/server/MapPlaylist.ts

@@ -42,6 +42,7 @@ const frequency: Partial<Record<GameMapName, number>> = {
   Iceland: 4,
   Italia: 6,
   Japan: 6,
+  Lisbon: 4,
   Mars: 3,
   Mena: 6,
   Montreal: 6,