feat: add ability to edit/import gitconfig when no configmap exists

[akurinnoy]

What does this PR do?

If it does not exist, the Dashboard creates a workspace-userdata-gitconfig-configmap Configmap with a data section like this

data:
  gitconfig: |
    [user]
    name=""
    email=""

This will allow users to edit this Git configuration, or import the entire .gitconfig file.

Screenshot/screencast of this PR

Screen.Recording.2024-09-26.at.13.10.06.mov

What issues does this PR fix or reference?

resolves eclipse-che/che#23147

Is it tested? How?

See screencast section

Release Notes

Docs PR

[openshift-ci]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[che-bot]

Click here to review and test in web IDE:

[codecov]

Codecov Report

Attention: Patch coverage is 96.49123% with 4 lines in your changes missing coverage. Please review.

Project coverage is 89.91%. Comparing base (d48136f) to head (1af744a).
Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
.../devworkspaceClient/services/gitConfigApi/index.ts	90.90%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1204      +/-   ##
==========================================
- Coverage   91.35%   89.91%   -1.45%     
==========================================
  Files         442      442              
  Lines       45650    45698      +48     
  Branches     3044     3060      +16     
==========================================
- Hits        41704    41088     -616     
- Misses       3946     4571     +625     
- Partials        0       39      +39     

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[github-actions]

Docker image build succeeded: quay.io/eclipse/che-dashboard:pr-1204

kubectl patch command

kubectl patch -n eclipse-che "checluster/eclipse-che" --type=json -p="[{"op": "replace", "path": "/spec/components/dashboard/deployment", "value": {containers: [{image: "quay.io/eclipse/che-dashboard:pr-1204", name: che-dashboard}]}}]"

[github-actions]

Docker image build succeeded: quay.io/eclipse/che-dashboard:pr-1204

kubectl patch command

kubectl patch -n eclipse-che "checluster/eclipse-che" --type=json -p="[{"op": "replace", "path": "/spec/components/dashboard/deployment", "value": {containers: [{image: "quay.io/eclipse/che-dashboard:pr-1204", name: che-dashboard}]}}]"

[olexii4]

@akurinnoy Could you run yarn lint:fix and add a commit with changes for fixing the build?

[olexii4]

LGTM

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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

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[devstudio-release]

Build 3.17 :: dashboard_3.x/556: Console, Changes, Git Data

[devstudio-release]

Build 3.17 :: sync-to-downstream_3.x/7740: Console, Changes, Git Data

[devstudio-release]

Build 3.17 :: get-sources-rhpkg-container-build_3.x/7735: Console, Changes, Git Data