Remove canvas smoothing
Add whitespaces handling within tokens

Includes:
- Fix indentation being drawn
- Add controls over char width/height independently of the line height
- Use a single loop for rendering lines with either colors or no colors
:lipstick::fire: Whitespaces
:bug: Fix invalid visible area position in minimap view

The minimap view delegates the line height and other visual properties
getter to the minimap editor view.
:racehorse: Do a single context.fill for all lines