[MD] UX updates on data source page & validation changes

[mpabba3003]

Description

This PR includes feedback changes received from #2399 & opensearch-project/ux#16

Issues Resolved

opensearch-project/ux#18
opensearch-project/ux#21
opensearch-project/ux#22
opensearch-project/ux#28
opensearch-project/ux#30
opensearch-project/ux#31
opensearch-project/ux#32
opensearch-project/ux#33
opensearch-project/ux#34
opensearch-project/ux#35
opensearch-project/ux#36
#2426
#2489
#2438

SCREENSHOTS

Home.-.OpenSearch.Dashboards.mp4

Update password:

dfg.-.OpenSearch.Dashboards.mp4

Check List

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

[seraphjiang]

could we add screenshot

[mpabba3003]

could we add screenshot

Added a video

[codecov-commenter]

Codecov Report

Merging #2521 (cbd6c84) into main (4095e12) will decrease coverage by 0.02%.
The diff coverage is 89.56%.

@@            Coverage Diff             @@
##             main    #2521      +/-   ##
==========================================
- Coverage   66.76%   66.73%   -0.03%     
==========================================
  Files        3201     3201              
  Lines       60943    60946       +3     
  Branches     9258     9266       +8     
==========================================
- Hits        40687    40673      -14     
- Misses      18041    18055      +14     
- Partials     2215     2218       +3     

Impacted Files	Coverage Δ
.../public/components/create_button/create_button.tsx	100.00% <ø> (ø)
src/plugins/data_source_management/public/types.ts	100.00% <ø> (ø)
...components/create_form/create_data_source_form.tsx	83.33% <68.96%> (-16.67%)	⬇️
...e_data_source_wizard/create_data_source_wizard.tsx	90.32% <81.25%> (-9.68%)	⬇️
...te_data_source_wizard/components/header/header.tsx	100.00% <100.00%> (ø)
...components/data_source_table/data_source_table.tsx	96.82% <100.00%> (-3.18%)	⬇️
...ent/public/components/text_content/text_content.ts	100.00% <100.00%> (ø)
...omponents/validation/datasource_form_validation.ts	100.00% <100.00%> (ø)
...plugins/management/public/utils/management_item.ts	91.66% <100.00%> (+0.75%)	⬆️
... and 2 more

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[zengyan-amazon]

we may consider to support other badge types to make this more generic. e.g. let outer component to optionally pass a badge type.
Not a blocker for this change though.

[kristenTian]

am waiting for tests to pass to approve and merge, could you rebase first due to the changelog conflict?

[mpabba3003]

am waiting for tests to pass to approve and merge, could you rebase first due to the changelog conflict?

@kristenTian Tests passed. But got a merge conflict as your PR got merged.

[opensearch-trigger-bot]

The backport to 2.x 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-2.x 2.x
# Navigate to the new working tree
cd .worktrees/backport-2.x
# Create a new branch
git switch --create backport/backport-2521-to-2.x
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 21a173b6d3e323038eafce121dffae28d0362299
# Push it to GitHub
git push --set-upstream origin backport/backport-2521-to-2.x
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-2.x

Then, create a pull request where the base branch is 2.x and the compare/head branch is backport/backport-2521-to-2.x.

[opensearch-trigger-bot]

The backport to 2.x 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-2.x 2.x
# Navigate to the new working tree
cd .worktrees/backport-2.x
# Create a new branch
git switch --create backport/backport-2521-to-2.x
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 21a173b6d3e323038eafce121dffae28d0362299
# Push it to GitHub
git push --set-upstream origin backport/backport-2521-to-2.x
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-2.x

Then, create a pull request where the base branch is 2.x and the compare/head branch is backport/backport-2521-to-2.x.