Add c# script name note to scripting_first_script.rst

[a-johnston]

Adds a short note regarding C# script naming. This is a somewhat common point of confusion for newer users. Please let me know if I should update the wording here to be clearer/more precise.

[raulsntos]

There's a note about this in the C# basics documentation page:

This page is already linked at the beginning of the Creating your first script documentation page. Users that intend to use C# with Godot should read it.

godot-docs/getting_started/step_by_step/scripting_first_script.rst

Line 31 in d4bff01

.. seealso:: To learn more about C#, head to the :ref:`C# basics <doc_c_sharp>` page.

Maybe the note should be reworded so it's a bit more aggresive?

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Either way I think adding a note in the step where you add your first script in the Getting Started tutorial makes sense, because I think it's meant to be very hand-holdy.

[a-johnston]

I agree with your comments and honestly I think the current error is pretty clear, but yeah still a common issue I've seen. I think in some cases users get to this page after being linked by Using signals and don't think to follow other links, or don't think they have anything to gain by going over the basics.

[skyace65]

Thanks!

[a-johnston]

Sorry if this isn't the best place to comment (is there an official place to discuss the docs repo?) but I noticed that many docs PRs marked as cherrypicked for a certain version still only show up under latest on the docs pages (for example #8711). This seems like it potentially could be an issue in how the build actions are configured? I'm guessing most users don't bother changing to latest and as a result might be missing out on a lot of corrections/changes.

[Piralein]

@a-johnston PR's with the cherry-pick label are still to be cherry-picked into the branch the label mentions. This is done by a maintainer, not an deploy/github action. The label will be removed after it was cherry-picked. The linked PR will show up in the stable and 4.2 version of the docs, after it was picked.

[mhilbrunner]

Cherry-picked to 4.2.