[Workspace]Replace connections copy with data sources

[wanglam]

Description

This PR is for replacing "connection" copy with "data sources" in workspace creation page like screenshots below.

Screenshot

Testing the changes

• Clone branch code and run yarn osd bootstrap --single-version loose
• Add below configs in config/opensearch_dashboards.yml

savedObjects.permission.enabled: true
workspace.enabled: true
uiSettings:
  overrides:
    'home:useNewHomePage': true
opensearchDashboards.dashboardAdmin.users: ['admin']

• Run yarn start --no-base-path
• Login with admin user and go to workspace create page by bottom left menu
• Scroll to the "Add data sources" section should show "data sources" instead "connections"
• Click "Add OpenSearch data sources" should show modal like screenshots above
• Click "Add Direct query data sources" should show modal like screenshots above

Changelog

• feat: [Workspace]Replace connections copy with data sources

Check List

• All tests pass
  • yarn test:jest
  • yarn test:jest_integration
• New functionality includes testing.
• New functionality has been documented.
• Update CHANGELOG.md
• Commits are signed per the DCO using --signoff

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 60.93%. Comparing base (fc03639) to head (74533e4).
Report is 76 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #8540   +/-   ##
=======================================
  Coverage   60.93%   60.93%           
=======================================
  Files        3777     3777           
  Lines       89852    89852           
  Branches    14086    14086           
=======================================
+ Hits        54750    54752    +2     
+ Misses      31668    31667    -1     
+ Partials     3434     3433    -1     

Flag	Coverage Δ
Linux_1	29.15% <ø> (ø)
Linux_2	56.28% <ø> (ø)
Linux_3	37.81% <ø> (+<0.01%)	⬆️
Linux_4	29.95% <ø> (ø)
Windows_1	29.16% <ø> (ø)
Windows_2	56.23% <ø> (ø)
Windows_3	37.81% <ø> (ø)
Windows_4	29.95% <ø> (ø)

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