Move apps in main directory

Signed-off-by: Emmy D'Anello <emmy.danello@animath.fr>

participation/templates/participation/upload_motivation_letter.html

@@ -0,0 +1,15 @@
+{% extends request.content_only|yesno:"empty.html,base.html" %}
+
+{% load i18n static crispy_forms_filters %}
+
+{% block content %}
+    <a class="btn btn-info" href="{% url "participation:team_detail" pk=object.pk %}"><i class="fas fa-arrow-left"></i> {% trans "Back to the team detail" %}</a>
+    <hr>
+    <form method="post" enctype="multipart/form-data">
+        <div id="form-content">
+            {% csrf_token %}
+            {{ form|crispy }}
+        </div>
+        <button class="btn btn-success" type="submit">{% trans "Upload" %}</button>
+    </form>
+{% endblock %}