Add font

[rivercory]

@ghutchis Added Poppins font for better readability!

[ghutchis]

I think this is something worth discussing with the community on https://discuss.avogadro.cc/ - it might help if you want to add a screenshot of your tweak.

[rivercory]

Isn't it cool?

[ghutchis]

As I said, please post at https://discuss.avogadro.cc (with screenshot) to make your argument for the rest of the community.

[rivercory]

https://discuss.avogadro.cc/t/change-font-to-poppins/5563