Change git pager command to delta

.gitconfig

@@ -22,6 +22,7 @@
 
 [core]
   editor = nvim
+  pager = delta
 
 [color]
   ui = auto
@@ -35,20 +36,14 @@
 [pull]
   rebase = true
 
-[color "diff"]
-  meta = yellow bold
-  commit = green bold
-  frag = magenta bold
-  old = red bold
-  new = green bold
-  whitespace = red reverse
+[interactive]
+  diffFilter = delta --color-only
 
-[color "diff-highlight"]
-  oldNormal = "red bold"
-  oldHighlight = "red bold 52"
-  newNormal = "green bold"
-  newHighlight = "green bold 22"
-
-[merge]
-  tool = kdiff3
+[delta]
+  features = side-by-side line-numbers decorations
+  whitespace-error-style = 22 reverse
 
+[delta "decorations"]
+  commit-decoration-style = bold yellow box ul
+  file-style = bold yellow ul
+  file-decoration-style = none