structure du projet + docker, back: mise en place BD et apps, front: début de dev pour le header et mise en place du thème et css global (override des variables bootstrap)

backend/api/prospect_flow/models/m2m_prospect_selling_argument.py

@@ -0,0 +1,21 @@
+from django.db import models
+from django.utils.translation import gettext_lazy as _
+
+from api.core.models.trackable_model import TrackableModel
+
+
+class M2M_ProspectSellingArgument(TrackableModel):
+    """
+    Many to Many table for selling arguments and prospects.
+    """
+
+    selling_argument = models.ForeignKey("SellingArgument", on_delete=models.CASCADE)
+    prospect = models.ForeignKey("Prospect", on_delete=models.CASCADE)
+
+    class Meta:
+        constraints = [
+            models.UniqueConstraint(
+                fields=["selling_argument", "prospect"],
+                name="unique_selling_argument_prospect",
+            )
+        ]