[Backport 2.11] Switch heading types on integrations setup page

[opensearch-trigger-bot]

Backport 4540326 from #1136.

[codecov]

Codecov Report

Merging #1137 (f433d2c) into 2.11 (f1aac6c) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             2.11    #1137   +/-   ##
=======================================
  Coverage   44.22%   44.22%           
=======================================
  Files         327      327           
  Lines       19477    19477           
  Branches     4643     4643           
=======================================
  Hits         8614     8614           
  Misses      10818    10818           
  Partials       45       45           

Flag	Coverage Δ
dashboards-observability	44.22% <ø> (ø)

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[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/dashboards-observability/backport-2.x 2.x
# Navigate to the new working tree
pushd ../.worktrees/dashboards-observability/backport-2.x
# Create a new branch
git switch --create backport/backport-1137-to-2.x
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 71967041344cd3bad4edfb86a298b29ea75c9050
# Push it to GitHub
git push --set-upstream origin backport/backport-1137-to-2.x
# Go back to the original working tree
popd
# Delete the working tree
git worktree remove ../.worktrees/dashboards-observability/backport-2.x

Then, create a pull request where the base branch is 2.x and the compare/head branch is backport/backport-1137-to-2.x.