Update vtt types

src/module/helpers.ts

@@ -4,7 +4,14 @@
 
 export function getCanvas(): Canvas {
     if (!(canvas instanceof Canvas) || !canvas.ready) {
-        throw new Error(game.i18n.localize("DS4.ErrorCanvasIsNotInitialized"));
+        throw new Error(getGame().i18n.localize("DS4.ErrorCanvasIsNotInitialized"));
     }
     return canvas;
 }
+
+export function getGame(): Game {
+    if (!(game instanceof Game)) {
+        throw new Error("Game is not initialized yet."); // Cannot localize this as we would need to access game to do this.
+    }
+    return game;
+}