codespell ROS 2 documentation dictionary support.

[fujitatomoya]

part of #5004

[github-actions]

HTML artifacts: https://github.com/ros2/ros2_documentation/actions/runs/13753967070/artifacts/2719184116.

To view the resulting site:

1. Click on the above link to download the artifacts archive
2. Extract it
3. Open html-artifacts-5058/index.html in your favorite browser

[kscottz]

Short and sweet. It is probably better that way. Once I have something concrete to point at it might be easier for users to submit their suggestions.

Did we document this functionality? I can file a ticket for documentation of the codespell dictionary to land here. That's a really easy feature for a GSoC student to add.

[fujitatomoya]

@kscottz thanks for the review.

I will make sure github workflow comes all green, and merge this now. after this PR is merged, we can add/remove the words for the ROS codespell dictionaries easily.

there is one thing left about ROS2 -> ROS 2 check via codespell. (actually i was trying to fix this in the 1st place with this PR.) for doing this, we need a new feature to ignore the words in a case-sensitive manner for codespell, that i already developed codespell-project/codespell#3658 and waiting for review. after this PR is merged in codespell, we can check ROS2 but ros2 with suggestion ROS 2. i will keep tracking this one with #5004.

[fujitatomoya]

Did we document this functionality? I can file a ticket for documentation of the codespell dictionary to land here. That's a really easy feature for a GSoC student to add.

@kscottz i just created #5075, i am happy to support and review on this. please let me know if you need anything from my side 😄

[kscottz]

@fujitatomoya looks like our new contributor is already on it. I now have a tracking spreadsheet for this stuff. I might wait for our new contributor to write the docs before I announce it.