Remove the deprecation warning message in the dashboard pod

[akurinnoy]

What does this PR do?

This PR changes the dashboard backend build so the resulting js bundle has no dependency packages included.

Is it tested? How?

1. Deploy Eclipse Che and patch CR with this 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-1119", name: che-dashboard}]}}]"

2. Create and launch a workspace.
3. Open the dashboard pod logs, there should be no deprecation warnings.

[che-bot]

Click here to review and test in web IDE:

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.21%. Comparing base (9873276) to head (8bb82b9).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1119      +/-   ##
==========================================
- Coverage   89.60%   89.21%   -0.39%     
==========================================
  Files         408      408              
  Lines       41604    41604              
  Branches     2786     2769      -17     
==========================================
- Hits        37281    37119     -162     
- Misses       4297     4461     +164     
+ Partials       26       24       -2     

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[github-actions]

Docker image build succeeded: quay.io/eclipse/che-dashboard:pr-1119

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-1119", name: che-dashboard}]}}]"

[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 3.15 :: dashboard_3.x/498: Console, Changes, Git Data

[devstudio-release]

Build 3.15 :: sync-to-downstream_3.x/6892: Console, Changes, Git Data

[devstudio-release]

Build 3.15 :: get-sources-rhpkg-container-build_3.x/6842: Console, Changes, Git Data