Improve posting trades to OANDA and make everything more robust

core/templates/partials/account-list.html

@@ -12,6 +12,7 @@
     <th>user</th>
     <th>name</th>
     <th>exchange</th>
+    <th>currency</th>
     <th>API key</th>
     <th>sandbox</th>
     <th>actions</th>
@@ -22,6 +23,7 @@
       <td>{{ item.user }}</td>
       <td>{{ item.name }}</td>
       <td>{{ item.exchange }}</td>
+      <td>{{ item.currency }}</td>
       <td>{{ item.api_key }}</td>
       <td>
         {% if item.sandbox %}