[firestore] Add unsupported network methods

lib/modules/firestore/index.js

@@ -122,6 +122,24 @@ export default class Firestore extends ModuleBase {
     );
   }
 
+  enableNetwork(): void {
+    throw new Error(
+      INTERNALS.STRINGS.ERROR_UNSUPPORTED_MODULE_METHOD(
+        'firestore',
+        'enableNetwork'
+      )
+    );
+  }
+
+  disableNetwork(): void {
+    throw new Error(
+      INTERNALS.STRINGS.ERROR_UNSUPPORTED_MODULE_METHOD(
+        'firestore',
+        'disableNetwork'
+      )
+    );
+  }
+
   settings(): void {
     throw new Error('firebase.firestore().settings() coming soon');
   }