fix(menu): correct submenu fix which broke right menus

The Fix of #632 was correctly implemented by the given jsfiddle. However in the PR itself the change was done differently (similiar to left menu...but this was also wrong already).
Unfortunately the change now leads to break normal existing right menu elements

This PR reverts the change by #632 but adds the fix out of the jsfiddle which was given by #632 ,so it' still @douglasg14b who found a fix for the main problem 😄

src/definitions/collections/menu.less

@@ -477,16 +477,22 @@ Floated Menu / Item
 
 /* Left Floated */
 .ui.menu:not(.vertical) .left.item,
-.ui.menu:not(.vertical) :not(.dropdown) > .left.menu {
+.ui.menu:not(.vertical) .left.menu {
   display: flex;
   margin-right: auto !important;
 }
 /* Right Floated */
 .ui.menu:not(.vertical) .right.item,
-.ui.menu:not(.vertical) :not(.dropdown) > .right.menu {
+.ui.menu:not(.vertical) .right.menu {
   display: flex;
   margin-left: auto !important;
 }
+
+.ui.menu:not(.vertical) :not(.dropdown) > .left.menu,
+.ui.menu:not(.vertical) :not(.dropdown) > .right.menu {
+  display: inherit;
+}
+
 /* Center */
 .ui.menu:not(.vertical) .center.item,
 .ui.menu:not(.vertical) .center.menu {