[FIX] mail: mark as read can ignore 404 error

404 means that the thread was deleted

Task-3577083

closes odoo/odoo#141372

X-original-commit: 6aeb00d7e3b60f9eb0cb968fe16ba1a333076ec3
Signed-off-by: Alexandre Kühn (aku) <aku@odoo.com>
Signed-off-by: Didier Debondt (did) <did@odoo.com>

addons/mail/static/src/core/common/thread_service.js

@@ -100,6 +100,10 @@ export class ThreadService {
                 last_message_id: newestPersistentMessage.id,
             }).then(() => {
                 this.updateSeen(thread, newestPersistentMessage.id);
+            }).catch((e) => {
+                if (e.code !== 404) {
+                    throw e;
+                }
             });
         } else if (newestPersistentMessage) {
             this.updateSeen(thread);