Add delta as git diff tool

gitconfig

@@ -1,10 +1,13 @@
 [init]
   defaultBranch = main
   templatedir = ~/.git_template
+
 [push]
   default = current
+
 [color]
   ui = auto
+
 [alias]
   aa = add --all
   ap = add --patch
@@ -19,21 +22,45 @@
   cleanup = "!git branch --merged | egrep -v \"(\\*|master|main|dev|develop)\" | xargs -r git branch -d"
   history = log --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit
   ignore = update-index --assume-unchanged
+
 [user]
   email = __[email]__
   name = __[name]__
   signingkey = __[signing_key]__
+
 [url "git@github.com:"]
   insteadOf = https://github.com
+
 [core]
   excludesfile = ~/.gitignore
+  pager = delta
+
 [fetch]
   prune = true
+
 [rebase]
   autosquash = true
+
 [diff]
   colorMoved = zebra
+
 [commit]
   gpgSign = true
+
 [sequence]
   editor = interactive-rebase-tool
+
+[interactive]
+  diffFilter = delta --color-only
+
+[delta]
+  navigate = true
+  light = false
+  line-numbers = true
+  side-by-side = true
+
+[merge]
+  conflictstyle = diff3
+
+[diff]
+  colorMoved = default