[FIX] base_setup: enable auto install

before this commit, on creating a new db, the general
settings menu is not accessible for end users without
installing any app.

for eg, if user need to activate the developer mode,
no option without installing an app.

after this commit, on a fresh db base_setup module
will automatically installed on creating a new db,
and general settings menu will be accessible.

closes odoo/odoo#129298

Signed-off-by: Julien Castiaux (juc) <juc@odoo.com>

addons/base_setup/__manifest__.py

@@ -17,6 +17,7 @@ Shows you a list of applications features to install from.
         'views/res_config_settings_views.xml',
         'views/res_partner_views.xml',
         ],
+    'auto_install': True,
     'installable': True,
 
     'license': 'LGPL-3',