minor: make read-only the default for cloud storage (#3275)

Author: ciyer

client/src/features/project/components/cloudStorage/projectCloudStorage.constants.ts

@@ -148,5 +148,5 @@ export const EMPTY_CLOUD_STORAGE_DETAILS: CloudStorageDetails = {
   name: undefined,
   sourcePath: undefined,
   mountPoint: undefined,
-  readOnly: undefined,
+  readOnly: true,
 };

tests/cypress/e2e/projectSettings.spec.ts

@@ -430,7 +430,7 @@ describe("Cloud storage settings page", () => {
       const { name, readonly, target_path } = body;
 
       expect(name).to.equal("fake-storage");
-      expect(readonly).to.be.false;
+      expect(readonly).to.be.true;
       expect(target_path).to.equal("external_storage/fake-storage");
     });