git: Enable jumps between different files in diff

Jump between file sections and commits by using n and N. Taken from:
https://github.com/so-fancy/diff-so-fancy/blob/eef379ee43f86/pro-tips.md

Remove FX flags since they are incompatible with the pattern search:
When showing a small change that fits on less than the screen height,
the rest of the screen is filled with ~ lines instead of quitting the
pager. This behaviour is annoying and thus the flags are deactivated.
Since git adds them per default they have to be explicitly disabled.

.config/git/config

@@ -12,7 +12,7 @@
     added = 076
     untracked = 014
 [core]
-	pager = diff-so-fancy | less --tabs=8 -RFX
+	pager = diff-so-fancy | less --tabs=8 -RG -+FX -p'^(Date|added|deleted|modified): '
 	excludesfile = ~/.config/git/ignore
 [alias]
 	root = rev-parse --show-toplevel