feat: Enhance gitconfig

.gitconfig

@@ -1,5 +1,20 @@
 [user]
-    email = matthewbinning@pm.me
-    name = Matthew Binning
-[core]
-    editor = vi
+	email = matthewbinning@pm.me
+	name = Matthew Binning
+	username = matthew.binning
+	editor = vi
+	autocrlf = input
+[init]
+	defaultBranch = main
+[pull]
+	rebase = true
+[push]
+	autoSetupRemote = true
+[alias]
+	br = branch
+	rb = rebase
+	st = status
+	sw = switch
+	l = log --oneline --graph --decorate
+[credential]
+	helper = /usr/lib/git-core/git-credential-libsecret