[IMP] crm_iap_enrich: send a toast notification for IAP credit shortage

Before this commit, it was posting a message in chatter if user did not have
credit enough to enrich a lead. This is mainly noise and not really user
friendly.

After this commit, it will show the toast notification for user message

Task-2269743

Part-of: odoo/odoo#60605

addons/crm_iap_enrich/data/mail_templates.xml

@@ -16,9 +16,9 @@
     </template>
 
     <template id="mail_message_lead_enrich_no_credit">
-        <p>Lead enriched (based on email address)</p>
-        <div style="background-color:#ffffff;padding:15px;">
-            <span>Your balance for Lead Enrichment is insufficient. Please go to your <a t-attf-href="{{url}}" target="_blank">IAP account</a> to buy credits.</span>
+         <div>
+            <span>Not Enough Credits for Lead Enrichment.</span><br/>
+            <a t-attf-href="{{url}}" target="_blank"><i class="fa fa-arrow-right"/>  Buy More Credits</a>
         </div>
     </template>
 </data></odoo>

addons/crm_iap_enrich/models/crm_lead.py

@@ -92,10 +92,14 @@ class Lead(models.Model):
                                 data = {
                                     'url': self.env['iap.account'].get_credits_url('reveal'),
                                 }
-                                leads[0].message_post_with_view(
-                                    'crm_iap_enrich.mail_message_lead_enrich_no_credit',
-                                    values=data,
-                                    subtype_id=self.env.ref('mail.mt_note').id)
+                                self.env['bus.bus'].sendone(
+                                    (self._cr.dbname, 'res.partner', self.env.user.partner_id.id),
+                                    {
+                                        'type': 'simple_notification',
+                                        'message': self.env.ref('crm_iap_enrich.mail_message_lead_enrich_no_credit')._render(data),
+                                        'message_is_html': True,
+                                    }
+                                )
                             # Since there are no credits left, there is no point to process the other batches
                             break
                         except Exception as e: