fix(webui): respond with 200 for successful shard operations

src/controllers/custom/popArchonCrystalUpgradeController.ts

@@ -12,6 +12,7 @@ export const popArchonCrystalUpgradeController: RequestHandler = async (req, res
         );
         await inventory.save();
         res.end();
+        return;
     }
     res.status(400).end();
 };

src/controllers/custom/pushArchonCrystalUpgradeController.ts

@@ -15,6 +15,7 @@ export const pushArchonCrystalUpgradeController: RequestHandler = async (req, re
             }
             await inventory.save();
             res.end();
+            return;
         }
     }
     res.status(400).end();