TypeScript update to 6.0.3 (#3806)

## Description:

Updating TypeScript to 6.0.3.
Updating TypeScript-eslint to 8.59.1 for TS6 support.
Concurrently needed to get updated as well to remove deprecated warning.

Most things deleted are now just defaults.

## 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:

Babyboucher

src/client/graphics/layers/ChatModal.ts

@@ -4,7 +4,7 @@ import { customElement, query } from "lit/decorators.js";
 import { PlayerType } from "../../../core/game/Game";
 import { GameView, PlayerView } from "../../../core/game/GameView";
 
-import quickChatData from "resources/QuickChat.json" with { type: "json" };
+import quickChatData from "resources/QuickChat.json";
 import { EventBus } from "../../../core/EventBus";
 import { CloseViewEvent } from "../../InputHandler";
 import { SendQuickChatEvent } from "../../Transport";

src/client/graphics/layers/PerformanceOverlay.ts

@@ -510,7 +510,7 @@ export class PerformanceOverlay extends LitElement implements Layer {
     if (!this.isUserSettingsListenerAttached) {
       globalThis.addEventListener(
         `${USER_SETTINGS_CHANGED_EVENT}:${PERFORMANCE_OVERLAY_KEY}`,
-        this.onUserSettingsChanged,
+        this.onUserSettingsChanged as EventListener,
       );
       this.isUserSettingsListenerAttached = true;
     }
@@ -522,7 +522,7 @@ export class PerformanceOverlay extends LitElement implements Layer {
     if (this.isUserSettingsListenerAttached) {
       globalThis.removeEventListener(
         `${USER_SETTINGS_CHANGED_EVENT}:${PERFORMANCE_OVERLAY_KEY}`,
-        this.onUserSettingsChanged,
+        this.onUserSettingsChanged as EventListener,
       );
       this.isUserSettingsListenerAttached = false;
     }

src/client/graphics/layers/StructureDrawingUtils.ts

@@ -306,7 +306,7 @@ export class SpriteFactory {
     structureType: UnitType,
     isConstruction: boolean,
     isMarkedForDeletion: boolean,
-    shape: string,
+    shape: keyof typeof ICON_SIZE,
     renderIcon: boolean,
   ): PIXI.Texture {
     const structureCanvas = document.createElement("canvas");