static: add playback arrow to position row

static/flexbox/index.html

@@ -96,8 +96,8 @@
             <td>undefined</td>
             <td>9:29</td>
           </tr>
-          <tr class="odd">
-            <td>3</td>
+          <tr class="odd playing">
+            <td class="playing">3</td>
             <td>Chakra</td>
             <td>Love Shines Through (Martin Roth's in Electro Love Remix)</td>
             <td>undefined</td>

static/flexbox/sanic.css

@@ -24,6 +24,9 @@ table {
   border-spacing: 0pt;
 }
 
+#queue-table tr td:first-of-type {
+  padding-left: 20px;
+}
 
 /* This is probably a better way to generate alternate coloring on tables. However,
    background color for selected track is overwritten this way. Therefore the "old