feat: make progress use lipgloss styles

[nervo]

Progress component is not cleanly usable in a lipgloss style driven project, because of its dependencies on termenv colors and color profile. Indeed, Both of them are not directly exposed by lipgloss styles..

Btw, i've managed to make it use lipgloss styles in a backward compatible way \o/

• new FullStyle and EmtpyStyle variables are introduced, having the default foreground color of FullColor and EmptyColor
• FullColor and EmptyColor are deprecated, make their default values to empty string. This way, if they are defined, we can set the foreground during rendering.
• WithSolidFill now just apply foreground color to FullStyle
• introduce WithFillStyles option which set both FullStyle and EmtpyStyle. It was inspired by WithFillCharacters, but can be easily split in both WithFullStyle and WithEmtpyStyle if you prefer
• WithColorProfile is the most touchy part :) It recreates and make them inherit from themselves FullStyle and EmtpyStyle, but starting from the default renderer, and applies color profile to it

The rest is all about using FullStyle and EmtpyStyle to render runes, instead of termenv.String.

Happy comments :)

[meowgorithm]

Hey again, @nervo! Nicely done here. We'll review this in a little more detail but generally speaking this looks awesome and is much needed, so thank you!