[IMP] lunch: add help message for empty alerts

closes odoo/odoo#38188

Taskid: 2081660
Signed-off-by: Yannick Tivisse (yti) <yti@odoo.com>

addons/lunch/views/lunch_alert_views.xml

@@ -80,5 +80,10 @@
         <field name="domain">['|', ('active', '=', True), ('active', '=', False)]</field>
         <field name="context">{}</field>
         <field name="view_id" ref="lunch_alert_view_tree"/>
+        <field name="help" type="html">
+            <p class="o_view_nocontent_smiling_face">
+                Create new lunch alerts
+            </p>
+        </field>
     </record>
 </odoo>