Extract amount template

web/budgeting.html

@@ -28,12 +28,8 @@
         </td>
         <td>
         </td>
-        <td style="text-align: right;{{if .Balance.GetPositive}}{{else}}color: red;{{end}}">
-            {{printf "%.2f" .Balance.GetFloat64}}
-        </td>
-        <td style="text-align: right;{{if .Activity.GetPositive}}{{else}}color: red;{{end}}">
-            {{printf "%.2f" .Activity.GetFloat64}}
-        </td>
+        {{template "amount-cell" .Balance}}
+        {{template "amount-cell" .Activity}}
     </tr>
     {{end}}
 </table>