Add cd to git root (cdg)

fish/.config/fish/conf.d/abbr.fish

@@ -21,6 +21,14 @@ abbr -a gaa git add -A
 if type -q "lazygit"
     abbr -a lg lazygit
 end
+function cdg
+    set git_root (git rev-parse --show-toplevel 2>/dev/null)
+    if test -d $git_root
+        cd $git_root
+    else
+        echo "Not inside a Git repository."
+    end
+end
 
 # doctrine
 abbr -a scme sc make:entity