Add 2Team spawnzones for Luna map (#3664)

## Description:

Adds spawn areas to the Luna map for 2 teams, given the map is very
symmetrical and would fit nicely with other team-centered maps like
baikal and 4islands. Thanks to deshack for suggesting this.

<img width="226" height="527" alt="image"
src="https://github.com/user-attachments/assets/8c3776d9-dfff-4bdf-a0ec-81d45daa61af"
/>


## 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

map-generator/assets/maps/luna/info.json

@@ -132,5 +132,11 @@
       "flag": "",
       "name": "[]"
     }
-  ]
+  ],
+  "teamGameSpawnAreas": {
+    "2": [
+      { "x": 0, "y": 0, "width": 1308, "height": 1750 },
+      { "x": 0, "y": 1750, "width": 1308, "height": 1750 }
+    ]
+  }
 }

resources/maps/luna/manifest.json

@@ -141,5 +141,21 @@
       "flag": "",
       "name": "[]"
     }
-  ]
+  ],
+  "teamGameSpawnAreas": {
+    "2": [
+      {
+        "height": 1750,
+        "width": 1308,
+        "x": 0,
+        "y": 0
+      },
+      {
+        "height": 1750,
+        "width": 1308,
+        "x": 0,
+        "y": 1750
+      }
+    ]
+  }
 }