Fix up search box display in the navbar

InvenTree/templates/InvenTree/search.html

@@ -4,7 +4,9 @@
 
 <h3>Search Results</h3>
 
+<div>
 {% include "search_form.html" with query_text=query %}
+</div>
 
 <br><br>
 <h3>Parts <span id='part-result-count'></span></h3>

InvenTree/templates/search_form.html

@@ -1,4 +1,3 @@
-<div>
 <form class="navbar-form navbar-left" action="{% url 'search' %}" method='post'>
     {% csrf_token %}
     <div class="form-group">
@@ -6,4 +5,3 @@
     </div>
     <button type="submit" id='search-submit' class="btn btn-default">Submit</button>
 </form>
-</div>