This commit also consolidates the exit operations for consistency's
sake, and adds a kill() method to renderers for stopping them without
performing any final rendering.
v0.13.4 introduced a regression where lines weren't always cleared when
resizing the window resulting in the presence of rendering artifacts.
This commit fixes that.
If the number of lines increased there's a chance that the increase in
lines caused the terminal to scroll (even in the altscreen). Because of
this we must repaint everything, as skipping lines will mis-render.
Thanks to @fiws for reporting this bug.
The Nil Renderer essentially disables the Bubble Tea renderer sending
loggings and print statements to stdout. It can be enabled via the
ProgramOption WithoutRenderer.
Christian Rocha
Kiyon
Christian Muehlhaeuser