fix(icons): changed ungroup icon (#3969)

* Updated icons/ungroup.svg

* Updated icons/ungroup.json

---------

Co-authored-by: Eric Fennis <eric.fennis@gmail.com>

icons/ungroup.json

@@ -1,7 +1,8 @@
 {
   "$schema": "../icon.schema.json",
   "contributors": [
-    "danielbayley"
+    "danielbayley",
+    "jguddas"
   ],
   "use-cases": [],
   "tags": [

icons/ungroup.svg

@@ -9,6 +9,6 @@
   stroke-linecap="round"
   stroke-linejoin="round"
 >
-  <rect width="8" height="6" x="5" y="4" rx="1" />
-  <rect width="8" height="6" x="11" y="14" rx="1" />
+  <rect x="11" y="14" width="10" height="7" rx="2" />
+  <rect x="3" y="3" width="10" height="7" rx="2" />
 </svg>