Fix issue with 100% width on equal height row

src/definitions/collections/grid.less

@@ -542,6 +542,7 @@ body > .ui.grid {
 
 .ui.celled.grid {
   display: table;
+  width: 100%;
   margin-left: 0%;
   margin-right: 0%;
   box-shadow: 0px 0px 0px @celledWidth @celledBorderColor;
@@ -642,6 +643,7 @@ body > .ui.grid {
 .ui.grid > .equal.height.row,
 .ui.equal.height.grid  {
   display: table;
+  width: 100%;
 }
 .ui.equal.height.grid > .column,
 .ui.equal.height.grid > .row > .column,