[FIX] mail: restore "pencil" icon behaviour in Followers widget

When editing the followers, the "pencil" icon that leads to the edition
of subtypes should be always be displayed, and not only when "debug"
mode is activated. This commit restores this behaviour, as it was not
the case any more.

opw-2144399

closes odoo/odoo#41643

X-original-commit: fd65f85e755eb0b732e0876c1849a0f4806968f1
Signed-off-by: Jorge Pinna Puissant (jpp) <jpp@odoo.com>

addons/mail/controllers/main.py

@@ -143,7 +143,9 @@ class MailController(http.Controller):
     @http.route('/mail/read_followers', type='json', auth='user')
     def read_followers(self, follower_ids, res_model):
         followers = []
-        is_editable = request.env['mail.followers'].user_has_groups('base.group_no_one')
+        # When editing the followers, the "pencil" icon that leads to the edition of subtypes
+        # should be always be displayed and not only when "debug" mode is activated.
+        is_editable = True
         partner_id = request.env.user.partner_id
         follower_id = None
         follower_recs = request.env['mail.followers'].sudo().browse(follower_ids)