[FIX] crm_mail_plugin: get CRM lead with partner id

Before this commit: Outlook Plugin wasn't able to get the opportunities of
contact. The problem was that the `crm_lead_get_by_partner_id` function
calls `_fetch_partner_leads` from the `CrmClient` instance, while it
doesn't have this function.

The solution is inherit the `MailPluginController` which contains this
function.

opw-3092995

closes odoo/odoo#109452

X-original-commit: 7013772d3b760cba0ba2fc1e4162ccfc260eba43
Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>
Signed-off-by: Pedram Bi Ria (pebr) <pebr@odoo.com>

addons/crm_mail_plugin/controllers/crm_client.py

@@ -5,8 +5,10 @@ from odoo import http
 from odoo.http import request
 from odoo.tools import html2plaintext
 
+from .mail_plugin import MailPluginController
 
-class CrmClient(http.Controller):
+
+class CrmClient(MailPluginController):
 
     @http.route(route='/mail_client_extension/log_single_mail_content',
                 type="json", auth="outlook", cors="*")