[IMP] various: reorganize the general setting

Purpose of the task is, 'general setting' is not easily understandable
by the user. The user often gets lost. This is especially damaging
through onboarding as some new users like to discover the software by
scrolling through the general settings.

So in this commit, the general setting is well organized and easily
understandable by the user.

Related PR: https://github.com/odoo/enterprise/pull/14707

closes odoo/odoo#61645

Taskid: 2374990
Related: odoo/enterprise#14707
Related: odoo/upgrade#1958
Signed-off-by: Yannick Tivisse (yti) <yti@odoo.com>

addons/base_setup/models/res_config_settings.py

@@ -15,7 +15,7 @@ class ResConfigSettings(models.TransientModel):
         "Default Access Rights",
         config_parameter='base_setup.default_user_rights')
     external_email_server_default = fields.Boolean(
-        "External Email Servers",
+        "Custom Email Servers",
         config_parameter='base_setup.default_external_email_server')
     module_base_import = fields.Boolean("Allow users to import data from CSV/XLS/XLSX/ODS files")
     module_google_calendar = fields.Boolean(
@@ -39,7 +39,6 @@ class ResConfigSettings(models.TransientModel):
     group_multi_currency = fields.Boolean(string='Multi-Currencies',
             implied_group='base.group_multi_currency',
             help="Allows to work in a multi currency environment")
-    paperformat_id = fields.Many2one(related="company_id.paperformat_id", string='Paper format', readonly=False)
     external_report_layout_id = fields.Many2one(related="company_id.external_report_layout_id", readonly=False)
     show_effect = fields.Boolean(string="Show Effect", config_parameter='base_setup.show_effect')
     company_count = fields.Integer('Number of Companies', compute="_compute_company_count")