[IMP] mail, *: rename partner model

Rename javascript model `mail.partner` to `Partner` in order to
distinguish javascript models from python models.

Part of task-2701674.
 * = hr, hr_holidays, im_livechat, website_livechat

closes odoo/odoo#81406

Signed-off-by: Alexandre Kühn (aku) <aku@odoo.com>

addons/hr/static/src/models/employee/employee.js

@@ -161,7 +161,7 @@ registerModel({
         /**
          * Partner related to this employee.
          */
-        partner: one2one('mail.partner', {
+        partner: one2one('Partner', {
             inverse: 'employee',
             related: 'user.partner',
         }),

addons/hr/static/src/models/partner/partner.js

@@ -5,7 +5,7 @@ import { attr, one2one } from '@mail/model/model_field';
 // ensure that the model definition is loaded before the patch
 import '@mail/models/partner/partner';
 
-addRecordMethods('mail.partner', {
+addRecordMethods('Partner', {
     /**
      * Checks whether this partner has a related employee and links them if
      * applicable.
@@ -20,7 +20,7 @@ addRecordMethods('mail.partner', {
     },
 });
 
-patchRecordMethods('mail.partner', {
+patchRecordMethods('Partner', {
     /**
      * When a partner is an employee, its employee profile contains more useful
      * information to know who he is than its partner profile.
@@ -40,7 +40,7 @@ patchRecordMethods('mail.partner', {
     },
 });
 
-addFields('mail.partner', {
+addFields('Partner', {
     /**
      * Employee related to this partner. It is computed through
      * the inverse relation and should be considered read-only.