v1.23.0

Improve and fix or declutter the "Compare selections" feature.

v1.22.0

I got to notice that the plugin did old tricks with the installed color schemes.
These were not elegant nor fail-proof. And now they're gone.

This means the colors you see the next time are different from what you're
used to see. But hey, we now use the standard colors from Sublime Text for
diffs.

Hence, you can change the colors in your color scheme (ctrl+shift+P,
"UI: Customize Color Scheme") as it should be and not in the settings of
this plugin anymore.

The following scopes/colors are used:

diff.inserted.sbs-compare, diff.inserted.char.sbs-compare,
diff.deleted.sbs-compare, diff.deleted.char.sbs-compare.

Note that I added the suffix ".sbs-compare". That means that you can either
change the scope e.g. diff.inserted to affect all diff views in Sublime Text
or target diff.inserted.sbs-compare specifically to only select "our" views.

v1.21.2

Fix: Actually stop the viewport sync'er when the user closes the comparison window or one of its views.

v1.21.0

This is the first release that only works on Sublime Text 4.

st3-1.20.3

This is the last release working on Sublime Text 3.

st3-1.20.0

This is the last official release from @dougty