Adding to Flathub

[MoralCode]

Hello!

Thanks for making this! Wanted to reach out and ask if you had any interest in going through the process to publish this to flathub.

I filed #1 with some changes I just threw together to help make this process easier as someone who has shipped a flatpak before.

Hope this is helpful!

[MoralCode]

Seems like someone else is already in the process:

flathub/flathub#6566

This seems to be stalled on the following flathub guideline:

Certain types of submissions, such as development tools and IDEs with a broad scope are generally not well-suited for Flatpak due to inherent sandboxing limitations and severely degrade the user experience. Unless these applications are being officially submitted by the upstream developers and/or upstream has explicitly committed to supporting Flatpak they will not be accepted.