[[B]Commits] Use --color=always with delta as well

[liskin]

With some delta configurations (e.g. color-only = true, diff-highlight = true), delta doesn't add its own coloring and keeps that from git diff, and thus we need to turn that on.

Additionally, delta doesn't do its own detection of moved lines and relies on git diff's colorMoved, which also needs enabling of colors.

[junegunn]

Thanks. Can you post screenshots before and after the patch where this makes difference?

[liskin]

Sure.

Without patch:

With patch:

My git/delta config is here if you need to dig deeper :-)

[junegunn]

Merged, thanks.