doc: add GitHub issue templates

[trueNAHO]

Stylix should have PR and issue templates to standardize their format to some extend. Additionally, the current GitHub labels might need adaptation.

Feel free to suggest new formats and refine already proposed ones.

I suggest we start the discussion based on https://github.com/nix-community/nixvim/pull/960.

Follows: https://github.com/danth/stylix/commit/bf31640f49cb115508c31bf3bd0b4b80bb8ab71d

[danth]

I think it would be helpful to have labelling which differentiates between new targets vs new features for Stylix as a whole - adding new targets tends to be less complex, so the ability to search for these in particular may provide a nice entry point for new contributors.

As has already been done with the commit message format, we should try to take inspiration from other projects in the Nix ecosystem.

[trueNAHO]

As has already been done with the commit message format, we should try to take inspiration from other projects in the Nix ecosystem.

Good idea.

I think it would be helpful to have labelling which differentiates between new targets vs new features for Stylix as a whole - adding new targets tends to be less complex, so the ability to search for these in particular may provide a nice entry point for new contributors.

I suggest adding an issue template for each label such that issue submitters can add the appropriate labels themselves. This would save maintainers tedious work.