Feature: data streams

[SuZhou-Joe]

Description

[Describe what this change achieves]

Issues Resolved

[List any issues this PR will resolve]

Check List

• Commits are signed per the DCO using --signoff

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[codecov-commenter]

Codecov Report

Merging #605 (a540350) into 2.x (a7a2ad9) will decrease coverage by 0.33%.
The diff coverage is n/a.

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@@            Coverage Diff             @@
##              2.x     #605      +/-   ##
==========================================
- Coverage   59.81%   59.48%   -0.33%     
==========================================
  Files         274      291      +17     
  Lines        9040     9670     +630     
  Branches     1564     1700     +136     
==========================================
+ Hits         5407     5752     +345     
- Misses       3219     3471     +252     
- Partials      414      447      +33     

Impacted Files	Coverage Δ
...xTemplate/components/TemplateType/TemplateType.tsx	53.84% <0.00%> (-31.87%)	⬇️
...onents/FormGenerator/built_in_components/index.tsx	64.70% <0.00%> (-5.30%)	⬇️
...c/pages/CreateIndex/containers/IndexForm/index.tsx	83.72% <0.00%> (-2.26%)	⬇️
...plate/containers/TemplateDetail/TemplateDetail.tsx	85.24% <0.00%> (-2.26%)	⬇️
...ublic/pages/Aliases/containers/Aliases/Aliases.tsx	87.82% <0.00%> (-1.60%)	⬇️
...ement-dashboards-plugin/public/pages/Main/Main.tsx	5.37% <0.00%> (-0.65%)	⬇️
...gement-dashboards-plugin/public/utils/constants.ts	95.23% <0.00%> (ø)
...dashboards-plugin/public/services/CommonService.ts	100.00% <0.00%> (ø)
...ds-plugin/public/pages/Indices/utils/constants.tsx	90.90% <0.00%> (ø)
...ic/pages/Aliases/containers/AliasActions/index.tsx	100.00% <0.00%> (ø)
... and 28 more

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[Angie-Zhang]

Replaced label v2.6.0 with v2.x due to the 2.6.0 release code cut off.

[opensearch-trigger-bot]

The backport to main failed:

The process '/usr/bin/git' failed with exit code 1

To backport manually, run these commands in your terminal:

# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add .worktrees/backport-main main
# Navigate to the new working tree
cd .worktrees/backport-main
# Create a new branch
git switch --create backport/backport-605-to-main
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 4f1394f5ecce8c8be9364bea8f607b39ead251e2
# Push it to GitHub
git push --set-upstream origin backport/backport-605-to-main
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-main

Then, create a pull request where the base branch is main and the compare/head branch is backport/backport-605-to-main.