[IMP] crm: rename string on custom filter

Before this commit, at custom filter 'Contents' option is there for filtering by
activity description. For more usability only rename is needed. By this commit
'contents' is changed to 'Activity Description'. User can filter records by
activity description.

task - 2008515

closes odoo/odoo#35070

Signed-off-by: Martin Geubelle (mge) <mge@openerp.com>

addons/crm/report/crm_activity_report.py

@@ -21,7 +21,7 @@ class ActivityReport(models.Model):
     user_id = fields.Many2one('res.users', 'Salesperson', readonly=True)
     team_id = fields.Many2one('crm.team', 'Sales Team', readonly=True)
     lead_id = fields.Many2one('crm.lead', "Opportunity", readonly=True)
-    body = fields.Html('Contents', readonly=True)
+    body = fields.Html('Activity Description', readonly=True)
     subtype_id = fields.Many2one('mail.message.subtype', 'Subtype', readonly=True)
     mail_activity_type_id = fields.Many2one('mail.activity.type', 'Activity Type', readonly=True)
     country_id = fields.Many2one('res.country', 'Country', readonly=True)

addons/crm/report/crm_activity_report_views.xml

@@ -31,7 +31,7 @@
                     <field name="date"/>
                     <field name="author_id"/>
                     <field name="mail_activity_type_id"/>
-                    <field name="body" string="Activity Description"/>
+                    <field name="body"/>
                     <field name="company_id" groups="base.group_multi_company"/>
                 </tree>
             </field>