Documents removing

* adds generic modal rendering using package django-bootstrap-modal-forms
* adds document file removing from hard drive
* adds translations

templates/base.html

@@ -8,6 +8,10 @@
     {% bootstrap_javascript jquery='full' %}
     {% fontawesome_5_static %}
     <link rel="stylesheet" href="{% static 'css/konova.css' %}">
+    {% comment %}
+        Adds script for modal rendering
+    {% endcomment %}
+    <script src="{% static 'js/jquery.bootstrap.modal.forms.min.js' %}"></script>
     {% block head %}
 
     {% endblock %}
@@ -27,6 +31,15 @@
         {% endfor %}
         </div>
 
+        {% comment %}
+            The modal wrapper, which can be used on every view can stay on the base.html template
+        {% endcomment %}
+        <div class="modal fade" tabindex="-1" role="dialog" id="modal">
+          <div class="modal-dialog" role="document">
+            <div class="modal-content"></div>
+          </div>
+        </div>
+
         {% block body %}
 
         {% endblock %}