Interfaces (topics, services, actions) (backport #6326)

[mergify]

Description

Create a new topic for Interfaces, replacing some legacy topics.

Related to: ros2/ros2#1725

Did you use Generative AI?

No

Additional Information

Documentation updates from 3di Information Solutions, agreed with Geoff and Tully.

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This is an automatic backport of pull request #6326 done by Mergify.

[mergify]

Cherry-pick of e650fa5 has failed:

On branch mergify/bp/humble/pr-6326
Your branch is up to date with 'origin/humble'.

You are currently cherry-picking commit e650fa5f.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   source/Concepts/Basic.rst
	new file:   source/Concepts/Basic/Interfaces-Topics-Services-Actions.rst
	deleted:    source/How-To-Guides/Topics-Services-Actions.rst

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   source/How-To-Guides.rst

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

[github-actions]

HTML artifacts: https://github.com/ros2/ros2_documentation/actions/runs/25889432297/artifacts/7006295352.

To view the resulting site:

1. Click on the above link to download the artifacts archive
2. Extract it
3. Open html-artifacts-6762/index.html in your favorite browser