Django-debug-toolbar: Change the default branch for the repository to main.

[tim-schilling]

I'd like to change the default branch from master to main. The Django community is an open and inclusive one, so this feels like a easy win to make our segment of the community more welcoming for many.

This commit makes the necessary changes to the repository, but there are a few other things that need to change:

• Transifex: We need to update the name of the resource there. I've added Matthias as a maintainer for the project. Going to the resource, clicking on settings, then changing the name should suffice.
• GitHub: Need to change the default branch to main in the settings.
• ReadTheDocs: We may need to change the default branch advanced setting in Read The Docs.

[matthiask]

Thanks for moving forwards with this!

I have changed the readthedocs configuration. I do not have access to GitHub settings either, that's only available to roadies. @jezdez May I ask you to help out here? Thanks in advance and sorry for bothering you.

Thanks for the Transifex invite! If you're able to make the change @tim-schilling please go ahead.

[tim-schilling]

Thanks for the Transifex invite! If you're able to make the change @tim-schilling please go ahead.

This part has been completed.

[jezdez]

Thanks for moving forwards with this!

I have changed the readthedocs configuration. I do not have access to GitHub settings either, that's only available to roadies. @jezdez May I ask you to help out here? Thanks in advance and sorry for bothering you.

No bother at all, I fully support this change and had it on my mind to do next for all repos. After the GitHub Actions move.. :)

[jezdez]

There is an existing main branch, I can't do the rename sadly. Is it okay for me to delete the branch?

[tim-schilling]

@jezdez Yes, go ahead. I'll clean up the commit issue after.

[jezdez]

Done!

[tim-schilling]

Thank you both for the quick responses on this. I've pushed the commit with the reference changes to main.