feature request: graph widgets

[Adam-Cosner]

A useful addition to libcosmic would be official graph widgets, like bar graphs, line graphs, and circle graphs. This would allow for more methods of numerical expression other than text, and would unify a design vision for how these graphs should look in the context of COSMIC.

[ilya-zlobintsev]

You can use the mature plotters library using plotters-cosmic-iced.