Template cleanup (#6421)

* Clean up & comment base templates

* Clean up login template & form

* Use SVG file for NetBox logo

* Simplify breadcrumbs

* Merge changelog.html into home.html

* Rename title_container block to header

* Move breadcrumbs block to object.html

* Attach names to endblock template tags

* Reorganize root-level templates into base/ and inc/

* Remove obsolete reference to Bootstrap 3.4.1

netbox/templates/search.html

@@ -1,4 +1,4 @@
-{% extends 'layout.html' %}
+{% extends 'base/layout.html' %}
 {% load helpers %}
 {% load form_helpers %}
 
@@ -11,7 +11,7 @@
                 <div class="col col-md-9">
                     {% for obj_type in results %}
                         <h3 id="{{ obj_type.name|lower }}">{{ obj_type.name|bettertitle }}</h3>
-                        {% include 'panel_table.html' with table=obj_type.table %}
+                        {% include 'inc/panel_table.html' with table=obj_type.table %}
                         <a href="{{ obj_type.url }}" class="btn btn-primary float-end my-3">
                             <i class="mdi mdi-arrow-right-bold" aria-hidden="true"></i>
                             {% if obj_type.table.page.has_next %}
@@ -65,4 +65,4 @@
             </div>
         </div>
     {% endif %}
-{% endblock %}
+{% endblock content %}