[feature-request] The ability to rename a theme, and a button to export the theme to other octoprint instances

[triton-nereide]

Hello Birkbjo,

you have made one of the most awsome plugs for octoprint ever, I do love it very much! I am asking you to add the the capability to rename and export / import modified themes to other instances of octoprint. This will give us the ability to share our themes with the comunity, and it will double the creativity of your awsome plug!
Thanx so much for creating this, please do keep this alive!
bset regards,
triton&nereide