fix: set default content type to text

frappe_whatsapp/frappe_whatsapp/doctype/whatsapp_notification/whatsapp_notification.py

@@ -57,7 +57,7 @@ def send_template_message(self, doc: Document):
         """Specific to Document Event triggered Server Scripts."""
         if self.disabled:
             return
-        self.content_type = 'text'
+
         doc_data = doc.as_dict()
         if self.condition:
             # check if condition satisfies
@@ -186,6 +186,9 @@ def notify(self, data):
                 headers=headers, data=json.dumps(data)
             )
 
+            if not self.get("content_type"):
+                self.content_type = 'text'
+
             frappe.get_doc({
                 "doctype": "WhatsApp Message",
                 "type": "Outgoing",