[FIX] pos_restaurant: show occupation on round tables

On square tables we graphically display how many people are currently on
the table by making part of the table on the floor screen darker. On
round tables we didn't do this.

addons/pos_restaurant/static/src/css/restaurant.css

@@ -76,6 +76,7 @@
     cursor: pointer;
     box-shadow: 0px 3px rgba(0,0,0,0.07);
     transition: background, background-color 300ms ease-in-out;
+    overflow: hidden;
 }
 .floor-map .table .table-cover {
     display: block;
@@ -240,7 +241,7 @@
     left: 50%;
     background: black;
     width: 20px;
-    margin-top: -10px;
+    margin-top: 1px;
     margin-left: -10px;
     height: 20px;
     line-height: 20px;

addons/pos_restaurant/static/src/xml/floors.xml

@@ -30,7 +30,7 @@
         <t t-if='!widget.selected'>
             <div class='table' t-att-style='widget.table_style_str()'>
                 <span 
-                    t-if="widget.table.shape !== 'round'"
+                    t-if="widget.table.shape"
                     t-att-class='"table-cover " + (widget.fill >= 1 ? "full" : "")'
                     t-att-style='"height: " + Math.ceil(widget.fill * 100) + "%;"'
                     ></span>