[FIX] project: translate error message in Project Sharing

Before this commit, when the user cannot write on a certain field
an error is occurred to notice the user, he cannot write on that field.
The problem is the `on` is never translated.

This commit fixes the issue to be sure the whole error message is
translated.

closes odoo/odoo#109288

X-original-commit: 5098c59cc6d1a853210f8c4f5340f0d4ee8dd883
Signed-off-by: Xavier Bol (xbo) <xbo@odoo.com>

addons/project/i18n/project.pot

@@ -5791,12 +5791,6 @@ msgstr ""
 msgid "You can only set a personal stage on a private task."
 msgstr ""
 
-#. module: project
-#: code:addons/project/models/project.py:0
-#, python-format
-msgid "You cannot %s %s fields in task."
-msgstr ""
-
 #. module: project
 #: code:addons/project/models/analytic_account.py:0
 #, python-format
@@ -5826,6 +5820,20 @@ msgid ""
 "their tasks."
 msgstr ""
 
+#. module: project
+#. odoo-python
+#: code:addons/project/models/project.py:0
+#, python-format
+msgid "You cannot read %s fields in task."
+msgstr ""
+
+#. module: project
+#. odoo-python
+#: code:addons/project/models/project.py:0
+#, python-format
+msgid "You cannot write on %s fields in task."
+msgstr ""
+
 #. module: project
 #: code:addons/project/models/project.py:0
 #, python-format

addons/project/models/project.py

@@ -1880,7 +1880,11 @@ class Task(models.Model):
         if fields and (not check_group_user or self.env.user.has_group('base.group_portal')) and not self.env.su:
             unauthorized_fields = set(fields) - (self.SELF_READABLE_FIELDS if operation == 'read' else self.SELF_WRITABLE_FIELDS)
             if unauthorized_fields:
-                raise AccessError(_('You cannot %s %s fields in task.', operation if operation == 'read' else '%s on' % operation, ', '.join(unauthorized_fields)))
+                if operation == 'read':
+                    error_message = _('You cannot read %s fields in task.', ', '.join(unauthorized_fields))
+                else:
+                    error_message = _('You cannot write on %s fields in task.', ', '.join(unauthorized_fields))
+                raise AccessError(error_message)
 
     def read(self, fields=None, load='_classic_read'):
         self._ensure_fields_are_accessible(fields)