feat(API): change to jwt authentication.

tienda_ilusion/users/serializers.py

@@ -0,0 +1,8 @@
+from django.contrib.auth.models import User
+from rest_framework import serializers
+
+
+class UserSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = User
+        fields = ('id', 'username', 'email', 'first_name', 'last_name')