Update git com alias to checkout main instead of master

git/.config/git/config

@@ -30,7 +30,7 @@
 	dmcw = diff master --color-words
 	p = !git fetch --all
 	sup = submodule update
-	com = checkout master
+	com = "!bash -c 'if [[ $(git rev-parse --verify main 2>/dev/null) ]] ; then git checkout main ; else git checkout master ; fi'"
 	cod = checkout develop
 	pod = push origin develop
 	file = show --pretty="format:" --name-only