Dashboard warns users that Safari is not supported

[akurinnoy]

What does this PR do?

In this PR I added the fix that allows Dashboard to run in Safari. And since Safari is not supported users will always see the permanent banner with the warning message at the top of the page.

What issues does this PR fix or reference?

fixes eclipse-che/che#20123

[github-actions]

Docker image build succeeded: docker.io/maxura/che-dashboard:che-dashboard-pull-315

[che-bot]

✅ E2E dashboard tests succeed 🎉

See Details

• Jenkins job

• test report

• logs and configs

• Che dashboard image:quay.io/crw_pr/che-dashboard:315

• Che server image: quay.io/crw_pr/che-server:315

Test product:

• tested with Eclipse Che on K8S (minikube v1.1.1)
• E2E test scenario
• E2E test pipeline source code

• Use comment "[dashboard-ci-test]" to rerun the dashboard e2e tests

Eclipse Che QE channel: https://mattermost.eclipse.org/eclipse/channels/eclipse-che-qe

[codecov]

Codecov Report

Merging #315 (6d7d692) into main (b90da0b) will decrease coverage by 0.03%.
The diff coverage is 37.03%.

@@            Coverage Diff             @@
##             main     #315      +/-   ##
==========================================
- Coverage   52.10%   52.07%   -0.04%     
==========================================
  Files         146      148       +2     
  Lines        5617     5640      +23     
  Branches      921      923       +2     
==========================================
+ Hits         2927     2937      +10     
- Misses       2413     2426      +13     
  Partials      277      277              

Impacted Files	Coverage Δ
...oard-frontend/src/components/BannerAlert/index.tsx	0.00% <0.00%> (ø)
...ges/dashboard-frontend/src/store/Branding/index.ts	0.00% <0.00%> (ø)
...mponents/BannerAlert/NotSupportedBrowser/index.tsx	100.00% <100.00%> (ø)
...ard-frontend/src/services/helpers/detectBrowser.ts	100.00% <100.00%> (ø)

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[olexii4]

LGTM

[sleshchenko]

LGTM

Since officially we don't support any other than Google Chrome, it makes sense to show it on the Firefox as well.

but it out of the current PR scope. I'll create a dedicated issue and raise it on Che Community Call.

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: akurinnoy, olexii4, sleshchenko

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[sleshchenko]

please, after merging create PR with cherry-pick the stuff onto 7.34.x