Fine-tuning the @typescript-eslint/no-unused-vars rule

We now allow parameters to be unused. This is quite common in inherited methods.
This allows removing a bunch of: //eslint-disable-next-line @typescript-eslint/no-unused-vars
Also, "err" variables in catch MUST now be used and the special _exhaustiveCheck variable used in ":never" assigns can be unused.

front/src/Phaser/Helpers/TexturesHelper.ts

@@ -28,7 +28,7 @@ export class TexturesHelper {
             });
         } catch (error) {
             rt.destroy();
-            throw new Error("Could not get the snapshot");
+            throw new Error("Could not get the snapshot: " + error);
         }
     }