[IMP] base: add missing views for ir.cron.trigger model

Purpose of this commit is to help debugging processes involving cron triggers
by adding views and a menu in Odoo. It allows to see triggers having been
created. Menu has been added under Scheduled Actions (aka Crons), in Technical
menu.

Task ID-2414658
COM PR odoo/odoo#63093

odoo/addons/base/__manifest__.py

@@ -30,6 +30,7 @@ The kernel of Odoo, needed for all installation.
         'views/ir_actions_views.xml',
         'views/ir_config_parameter_views.xml',
         'views/ir_cron_views.xml',
+        'views/ir_cron_trigger_views.xml',
         'views/ir_filters_views.xml',
         'views/ir_mail_server_views.xml',
         'views/ir_model_views.xml',

odoo/addons/base/views/ir_cron_trigger_views.xml

@@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="ir_cron_trigger_view_form" model="ir.ui.view">
+        <field name="name">ir.cron.trigger.view.form</field>
+        <field name="model">ir.cron.trigger</field>
+        <field name="arch" type="xml">
+            <form string="Cron Trigger">
+                <sheet>
+                    <group>
+                        <field name="cron_id"/>
+                        <field name="call_at"/>
+                    </group>
+                </sheet>
+            </form>
+        </field>
+    </record>
+
+    <record id="ir_cron_trigger_view_tree" model="ir.ui.view">
+        <field name="name">ir.cron.trigger.view.tree</field>
+        <field name="model">ir.cron.trigger</field>
+        <field name="arch" type="xml">
+            <tree string="Cron Triggers">
+                <field name="cron_id"/>
+                <field name="call_at"/>
+            </tree>
+        </field>
+    </record>
+
+    <record id="ir_cron_trigger_view_search" model="ir.ui.view">
+        <field name="name">ir.cron.trigger.view.search</field>
+        <field name="model">ir.cron.trigger</field>
+        <field name="arch" type="xml">
+            <search string="Cron Triggers">
+                <field name="cron_id"/>
+                <field name="call_at"/>
+            </search>
+        </field>
+    </record>
+
+    <record id="ir_cron_trigger_action" model="ir.actions.act_window">
+        <field name="name">Scheduled Actions Triggers</field>
+        <field name="res_model">ir.cron.trigger</field>
+        <field name="view_mode">tree,form</field>
+    </record>
+
+    <menuitem id="ir_cron_trigger_menu"
+        action="ir_cron_trigger_action"
+        parent="base.menu_automation"
+        sequence="3"/>
+
+</odoo>

odoo/addons/base/views/ir_cron_views.xml

@@ -91,6 +91,9 @@
             <field name="view_id" ref="ir_cron_view_tree"/>
         </record>
 
-        <menuitem id="menu_ir_cron_act" action="ir_cron_act" parent="base.menu_automation"/>
+        <menuitem id="menu_ir_cron_act"
+            parent="base.menu_automation"
+            action="ir_cron_act"
+            sequence="2"/>
 
 </odoo>