Fix spelling of restoring in credentials docs

[Tanvir Alam (tanvir-ux)]

Corrected resotring to restoring in the Credentials API docs.

Requested by Yury Semikhatsky (@yury-s) on microsoft/playwright-java#1982 (Java bindings generate from this source).

[github-actions]

Test results for "MCP"

3 failed
❌ [firefox] › mcp/cli-mouse.spec.ts:38 › mousewheel @mcp-windows-latest-firefox
❌ [firefox] › mcp/idle-timeout.spec.ts:19 › closes the browser after the idle timeout and relaunches it on the next call @mcp-windows-latest-firefox
❌ [msedge] › mcp/annotate.spec.ts:269 › should start dashboard and annotate when no dashboard is running @mcp-windows-latest-msedge

8561 passed, 1446 skipped

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Merge workflow run.

[github-actions]

Test results for "tests 1"

1 failed
❌ [firefox-library] › library/browsercontext-storage-state.spec.ts:453 › should work when service worker is intefering and the origin is not open @firefox-ubuntu-22.04-node20

5 flaky

⚠️ [chromium-library] › library/video.spec.ts:699 › screencast › should capture full viewport on hidpi `@chromium-ubuntu-22.04-arm-node20`
⚠️ [chromium-library] › library/chromium/chromium.spec.ts:373 › should produce network events, routing, and annotations for Service Worker `@chromium-ubuntu-22.04-node20`
⚠️ [firefox-library] › library/browsercontext-cookies-third-party.spec.ts:257 › third party 'Partitioned;' cookies `@firefox-ubuntu-22.04-node20`
⚠️ [firefox-library] › library/browsercontext-cookies-third-party.spec.ts:470 › top level 'Partitioned;' cookie and same origin iframe `@firefox-ubuntu-22.04-node20`
⚠️ [firefox-page] › page/page-emulate-media.spec.ts:144 › should keep reduced motion and color emulation after reload `@firefox-ubuntu-22.04-node20`

51722 passed, 1247 skipped

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Merge workflow run.