[FIX] website_slides: make content stat button redirection match counters

Course content counters count only published content while content stat button
redirects to all contents. Solution to this mismatch is to apply a search
filter on button action to display published ontent by default.

Also remove unnecessary action. Using a type="edit" seems sufficient, no need
to define a python method just for that purpose.

Task 2067324 (counters / action on content mismatch)
PR #36756

addons/website_slides/models/slide_channel.py

@@ -481,18 +481,12 @@ class Channel(models.Model):
         if removed_channel_partner_domain:
             self.env['slide.channel.partner'].sudo().search(removed_channel_partner_domain).unlink()
 
-    def action_view(self):
-        return {
-            'type': 'ir.actions.act_window',
-            'view_type': 'form',
-            'view_mode': 'form',
-            'res_model': 'slide.channel',
-            'res_id': self.id,
-        }
-
     def action_view_slides(self):
         action = self.env.ref('website_slides.slide_slide_action').read()[0]
-        action['context'] = {'default_channel_id': self.id}
+        action['context'] = {
+            'search_default_published': 1,
+            'default_channel_id': self.id
+        }
         action['domain'] = [('channel_id', "=", self.id), ('is_category', '=', False)]
         return action
 

addons/website_slides/views/slide_channel_views.xml

@@ -236,7 +236,7 @@
                                 <div class="o_kanban_card_header">
                                     <div class="o_kanban_card_header_title mb16">
                                         <div class="o_primary">
-                                            <a name="action_view" type="object" class="mr-auto">
+                                            <a type="edit" class="mr-auto">
                                                 <span><field name="name" class="o_primary"/></span>
                                             </a>
                                         </div>