Added Game of thrones map (#390)

## Description: The entire world from game of thrones

Thanks to apuddle7 on discord for helping me a lot with this map
especially the rivers

![Screenshot 2025-04-01 at 19 35
09](https://github.com/user-attachments/assets/d96e2de5-06f4-4103-877b-0dbf33a34137)
![Screenshot 2025-04-01 at 19 36
25](https://github.com/user-attachments/assets/22ccd251-e7ef-4f7e-b943-afa2e9c445ae)
![Screenshot 2025-04-01 at 19 23
11](https://github.com/user-attachments/assets/aa4de47b-c5bd-4610-ba84-713a4b4f7da3)

## Please complete the following:

- [X] I have added screenshots for all UI updates
- [X] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced
- [X] I understand that submitting code with bugs that could have been
caught through manual testing blocks releases and new features for all
contributors

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

Discord: 
lunhuiyan1718

src/client/utilities/Maps.ts

@@ -7,6 +7,7 @@ import europe from "../../../resources/maps/EuropeThumb.webp";
 import gatewayToTheAtlantic from "../../../resources/maps/GatewayToTheAtlanticThumb.webp";
 import iceland from "../../../resources/maps/IcelandThumb.webp";
 import japan from "../../../resources/maps/JapanThumb.webp";
+import knownworld from "../../../resources/maps/KnownWorldThumb.webp";
 import mars from "../../../resources/maps/MarsThumb.webp";
 import mena from "../../../resources/maps/MenaThumb.webp";
 import northAmerica from "../../../resources/maps/NorthAmericaThumb.webp";
@@ -51,6 +52,8 @@ export function getMapsImage(map: GameMapType): string {
       return iceland;
     case GameMapType.Japan:
       return japan;
+    case GameMapType.KnownWorld:
+      return knownworld;
     default:
       return "";
   }