[Data Explorer][Discover 2.0] Append popout icon to oui link for doc viewer links

[ananzh]

Issues Resolved

#4825

Screenshot

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

[codecov]

Codecov Report

Merging #4855 (26acb3e) into main (2738131) will decrease coverage by 0.02%.
Report is 2 commits behind head on main.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #4855      +/-   ##
==========================================
- Coverage   66.43%   66.42%   -0.02%     
==========================================
  Files        3396     3396              
  Lines       64865    64869       +4     
  Branches    10357    10358       +1     
==========================================
- Hits        43096    43092       -4     
- Misses      19209    19217       +8     
  Partials     2560     2560              

Flag	Coverage Δ
Linux_1	34.84% <ø> (-0.02%)	⬇️
Linux_2	55.15% <ø> (ø)
Linux_3	44.24% <ø> (?)
Linux_4	35.04% <ø> (ø)
Windows_1	34.87% <ø> (ø)
Windows_2	55.12% <ø> (ø)
Windows_3	44.24% <ø> (-0.01%)	⬇️
Windows_4	35.04% <ø> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
...n/components/doc_viewer_links/doc_viewer_links.tsx	100.00% <ø> (ø)

... and 5 files with indirect coverage changes

[opensearch-trigger-bot]

The backport to 2.x failed:

The process '/usr/bin/git' failed with exit code 128

To backport manually, run these commands in your terminal:

# Navigate to the root of your repository
cd $(git rev-parse --show-toplevel)
# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add ../.worktrees/OpenSearch-Dashboards/backport-2.x 2.x
# Navigate to the new working tree
pushd ../.worktrees/OpenSearch-Dashboards/backport-2.x
# Create a new branch
git switch --create backport/backport-4855-to-2.x
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 e9ad10ffb22f358e05d883f9ad8998e169e45fd0
# Push it to GitHub
git push --set-upstream origin backport/backport-4855-to-2.x
# Go back to the original working tree
popd
# Delete the working tree
git worktree remove ../.worktrees/OpenSearch-Dashboards/backport-2.x

Then, create a pull request where the base branch is 2.x and the compare/head branch is backport/backport-4855-to-2.x.