feat(lib): add `mkcd` as equivalent to `takedir` (#9749)

Fixes #9749

lib/functions.zsh

@@ -13,10 +13,6 @@ function upgrade_oh_my_zsh() {
   omz update
 }
 
-function takedir() {
-  mkdir -p $@ && cd ${@:$#}
-}
-
 function open_command() {
   local open_cmd
 
@@ -37,6 +33,13 @@ function open_command() {
   ${=open_cmd} "$@" &>/dev/null
 }
 
+# take functions
+
+# mkcd is equivalent to takedir
+function mkcd takedir() {
+  mkdir -p $@ && cd ${@:$#}
+}
+
 function takeurl() {
   data=$(mktemp)
   curl -L $1 > $data