[IMP] point_of_sale: CSS: resize to better fit ipad resolutions

addons/point_of_sale/static/src/css/pos.css

@@ -927,9 +927,9 @@ td {
     display: inline-block;
     line-height: 100px;
     font-size: 11px;
-    margin: 5px !important;
-    width: 120px;
-    height:120px;
+    margin: 8px !important;
+    width: 122px;
+    height:115px;
     background:#fff;
     border: 1px solid #e2e2e2;
     border-radius: 3px;
@@ -2199,8 +2199,8 @@ td {
 /*  ********* The Webkit Scrollbar  ********* */
 
 .pos *::-webkit-scrollbar{
-    width:  10px;
-    height: 10px;
+    width:  4px;
+    height: 4px;
 }
 .pos *::-webkit-scrollbar-track{
     background: rgb(224,224,224);
@@ -2208,6 +2208,7 @@ td {
 }
 .pos *::-webkit-scrollbar-thumb{
     background: rgb(168,168,168);
+    background: #393939;
     min-height: 30px;
 }