fix(VListItem): vertical alignment on IE11 (#10717)

fixes #10464

* fix(vlist.sass): fix menu list items on IE11

On IE11 text in menu list items was not vertically centered.

* fix(vlistitem.sass): workaround IE11 min-height in flex container

Fixed vertical text alignments in lists on IE11

* fix(vlistitem.sass): followed feedback refactor

Just applied refactoring from comment.

* fix(vlistitem.sass): pr feedback + removed unnecessary new line

Pseudoelements should you double colon + removed unnecessary new line

fix #10464

packages/vuetify/src/components/VList/VListItem.sass

@@ -40,6 +40,14 @@
   &--selectable
     user-select: auto
 
+  // Fix for IE11 where min-height does not work with
+  // align-items: center in flex containers
+  // https://github.com/philipwalton/flexbugs/issues/231
+  &::after
+    content: ''
+    min-height: inherit
+    font-size: 0
+
 // Element
 .v-list-item__action
   align-self: center