Fixed bugs in Task Template

templates/tasks.html

@@ -18,7 +18,7 @@
         <span class="edit-box">
             <input class="task-id-editor" name="tid" size="3" placeholder="000" value="{{ task['id'] }}">
             <input class="task-value-editor" name="content" value="{{ task['txt'] }}">
-            <input class="task-pre-editor" name="pre" value="{{ ','.join(task['pre']) }}">
+            <input class="task-pre-editor" name="pre" value="{{ ' '.join(task['pre']) }}">
             <button class="btn-save" name="action" value="save" type="submit">Save</button>
             <button class="btn-cancel" type="button">Cancel</button>
             <button class="btn-delete" name="action" value="delete" type="submit">Delete</button>
@@ -51,17 +51,21 @@
             </form>
         </li>
     </ul>
+    {% if blocked_tasks %}
     <h2>Blocked Tasks:</h2>
     <ul>
         {% for task in blocked_tasks %}
         {{ make_task(task) }}
         {% endfor %}
     </ul>
+    {% endif %}
+    {% if complete_tasks %}
     <h2>Complete Tasks:</h2>
     <ul>
         {% for task in complete_tasks %}
         {{ make_task(task) }}
         {% endfor %}
     </ul>
+    {% endif %}
 </main>
 {% endblock %}