chore: update @remnawave/backend-contract to version 2.1.53 in package.json and package-lock.json

Author: kastov

package-lock.json

@@ -58,7 +58,7 @@
     "@mantine/spotlight": "^8.3.1",
     "@monaco-editor/react": "^4.7.0",
     "@paralleldrive/cuid2": "2.2.2",
-    "@remnawave/backend-contract": "2.1.52",
+    "@remnawave/backend-contract": "2.1.53",
     "@stablelib/base64": "^2.0.1",
     "@stablelib/x25519": "^2.0.1",
     "@tabler/icons-react": "^3.34.1",