update css to support truncating headers and filling cell (#354)

webapp/src/components/table/table.scss

@@ -69,6 +69,7 @@
         .octo-propertyvalue {
             text-align: left;
             white-space: nowrap;
+            width: inherit;
         }
     }
 
@@ -110,4 +111,16 @@
             }
         }
     }
+
+    .MenuWrapper {  
+        width: 100%;
+        max-width: calc(100% - 5px);
+
+        .Label {
+            width: 100%;
+            display: inline-block;
+            text-overflow: ellipsis;
+            overflow: hidden;
+        }
+    }
 }