feat(VCST-4085): optimize page loading async white labeling and router

[ivan-kalachikov]

Description

The whole from call to app.mount in app-runner.ts takes ~900-1300 ms.

• Not waiting for WhiteLabelingSettings query saves us ~200-250 ms. But there is a drawback - there is a few milliseconds flickering if theme is differs from the default theme (first default theme is rendered then another one from white labeling).
• Not waiting for router.isReady() (safely for some non-guarded pages) saves us another ~150 ms.

All in all result is ~25-30% speed up (300-500ms) of app-runner stage.

References

Jira-link:

https://virtocommerce.atlassian.net/browse/VCST-4085

Artifact URL:

https://vc3prerelease.blob.core.windows.net/packages/vc-theme-b2b-vue-2.33.0-pr-2000-7de6-7de614ff.zip

[sonarqubecloud]

Quality Gate passed

Issues
2 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud