fix: setOptions should call setOverflow when changing frozenColum…

…ns (#608)

- if we change from a regular grid to a frozen grid dynamically by calling `setOptions({ frozenColumn: 2 })` then it should call `setOverflow` to redo the associated css overflow. This PR does just that and prior to this PR the overflow was just reset and sometime the scrolling was showing up on the left section when it shouldn't

slick.grid.js

@@ -2910,7 +2910,7 @@ if (typeof Slick === "undefined") {
       return options;
     }
 
-    function setOptions(args, suppressRender, suppressColumnSet) {
+    function setOptions(args, suppressRender, suppressColumnSet, suppressSetOverflow) {
       if (!getEditorLock().commitCurrentEdit()) {
         return;
       }
@@ -2938,6 +2938,9 @@ if (typeof Slick === "undefined") {
 
       setFrozenOptions();
       setScroller();
+      if (!suppressSetOverflow) {
+        setOverflow();
+      }
       zombieRowNodeFromLastMouseWheelEvent = null;
 
       if (!suppressColumnSet) {