Fix Territory Skins option (#2538)

Resolves #2517 

## Description:

Fixes territory skin option not doing anything.
Also changes some instances of directly accessing
"this.cosmetics.pattern" to use the precalculated "pattern" variable.

## 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:

Lavodan

Author: Lavodan

src/core/game/GameView.ts

@@ -212,7 +212,9 @@ export class PlayerView {
       .theme()
       .borderColor(defaultTerritoryColor);
 
-    const pattern = this.cosmetics.pattern;
+    const pattern = userSettings.territoryPatterns()
+      ? this.cosmetics.pattern
+      : undefined;
     if (pattern) {
       pattern.colorPalette ??= {
         name: "",
@@ -224,7 +226,7 @@ export class PlayerView {
     if (this.team() === null) {
       this._territoryColor = colord(
         this.cosmetics.color?.color ??
-          this.cosmetics.pattern?.colorPalette?.primaryColor ??
+          pattern?.colorPalette?.primaryColor ??
           defaultTerritoryColor.toHex(),
       );
     } else {
@@ -253,9 +255,9 @@ export class PlayerView {
       .defendedBorderColors(this._borderColor);
 
     this.decoder =
-      this.cosmetics.pattern === undefined
+      pattern === undefined
         ? undefined
-        : new PatternDecoder(this.cosmetics.pattern, base64url.decode);
+        : new PatternDecoder(pattern, base64url.decode);
   }
 
   territoryColor(tile?: TileRef): Colord {