fix: Latest configuration for devcontainer.json and Dockerfile

[mdsanima]

Description

Please explain the changes you made here.

Requirements / Checklist

• Read the Contributing Guidelines
• Verified the license of any newly added font, glyph, or glyph set

What does this Pull Request (PR) do?

Updating the .devcontainer configuration to latest version.

How should this be manually tested?

Any background context you can provide?

What are the relevant tickets (if any)?

Screenshots (if appropriate or helpful)

[Finii]

Thanks for the PR!

The devcontainer has been introduced silently with

• Update Fira Code to latest version #497

and no explanation given why we possibly want that.

Maybe you can explain what the advantages are or the use-cases, maybe adding documentation. To be honest I was on the brink of removing it some months ago for uselessness and non-documentation.

[mdsanima]

As for documentation, I can write it, can you tell me where? Should this be in the READMD.md file or maybe in some other file?

[Finii]

As for documentation, I can write it, can you tell me where? Should this be in the READMD.md file or maybe in some other file?

That would be great! Just a ./devcontainer/README.md maybe is enough?

[Finii]

@allcontributors please add @mdsanima for code

[allcontributors]

@Finii

I've put up a pull request to add @mdsanima! 🎉

[mdsanima]

I just added the documentation. I think this is enough instruction for this. If necessary, I can also translate this documentation into Polish. @Finii can you review this? Thanks!

[Finii]

Personally I believe translations age not gracefully, i.e. get out of sync more or less quickly.

Thanks for adding the explanation/readme!

I will pull this in the next minutes.

Just out of interest... Why would one want to use THIS instead of just the docker container that we always keep up to date [1] directly 🤔

I mean, if you have docker installed, you just need to

docker run --rm -v /path/to/fonts:/in:Z -v /path/for/output:/out:Z nerdfonts/patcher [OPTIONS]

which will download the most up to date font-patcher etc etc.
Maybe this is a leftover from the time where we did not automagically rebuild the container on every push?

[1] https://hub.docker.com/r/nerdfonts/patcher