nvim: add nvim-tree

.gitconfig

@@ -5,11 +5,25 @@
 	ui = true
 [push]
 	default = simple
-[pager]
-    log = diff-highlight | less
-    show = diff-highlight | less
-    diff = diff-highlight | less
 [commit]
     gpgsign = true
 [log]
     showsignature = true
+[core]
+    pager = delta
+
+[interactive]
+    diffFilter = delta --color-only
+
+[delta]
+    navigate = true    # use n and N to move between diff sections
+
+    # delta detects terminal colors automatically; set one of these to disable auto-detection
+    # dark = true
+    # light = true
+
+[merge]
+    conflictstyle = diff3
+
+[diff]
+    colorMoved = default