fix(frontend/test): stub escapeHtmlAttr in utils mocks (Build frontend CI red)

[cristim]

Seven jest suites omitted escapeHtmlAttr from their jest.mock('../utils', ...) factory, causing TypeError: (0 , utils_1.escapeHtmlAttr) is not a function when plans.ts/history.ts render. Added the stub already present in history.test.ts (encodes & < > " ') to each affected suite. No production code changes. After fix: 2497 tests pass, only the 2 pre-existing timezone failures in utils.test.ts remain, tsc --noEmit is clean.

Closes #1115

[cristim]

@coderabbitai full review

[coderabbitai]

✅ Action performed

Full review finished.

[coderabbitai]

Important

Review skipped

Auto reviews are disabled on base/target branches other than the default branch.

Please check the settings in the CodeRabbit UI or the .coderabbit.yaml file in this repository. To trigger a single review, invoke the @coderabbitai review command.

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 2a4b33ef-6b14-4e35-b7cc-7cd18612c918

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

Use the checkbox below for a quick retry:

• 🔍 Trigger review

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/frontend-test-escapehtmlattr-mock

---

_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[cristim]

Closing as redundant: all seven test suites this PR stubs (allowed-accounts, history-approval-queue, history-approve-button, history-cancel-button, history-cancel-permissions, history-retry-button, plans.test.ts) already have the escapeHtmlAttr mock on feat/multicloud-web-frontend. The one remaining gap (plans-range-validation.test.ts, 0 stubs on base) is fixed by #1117, which is CLEAN and green. No unique content here to preserve. Closes the duplicate for #1115.

[cristim]

Correction to my previous comment: this PR is merged and was the primary fix (7 suites). It is NOT redundant. #1117 complements it by stubbing the one suite this PR did not cover (plans-range-validation.test.ts). Apologies for the mischaracterization.