[IMP] mail: add MainComponentsContainer to guest pages

Previously, guest would not get any error dialogs when errors were
occuring, while the error service and dialog service were correctly
deployed, they were missing the main components container which allows
the dialog service to display the currently opened dialogs. The main
components container also allows the norification and popover services
to work, allowing them to be used for future developments if needed.

X-original-commit: 2a73d441babee25343bf09b5e1a6513afb084c92
Part-of: odoo/odoo#76616

addons/mail/__manifest__.py

@@ -70,6 +70,7 @@
             'web/static/src/legacy/scss/bootstrap_review.scss',
             'web/static/src/webclient/webclient.scss',
             'web/static/src/webclient/webclient_extra.scss',
+            'web/static/src/core/utils/*.scss',
             # Dependency of notification_group, notification_request, thread_needaction_preview and thread_preview
             'mail/static/src/components/notification_list/notification_list_item.scss',
             'mail/static/src/component_hooks/*/*.js',
@@ -90,7 +91,7 @@
             'bus/static/src/js/services/bus_service.js',
             'web/static/lib/luxon/luxon.js',
             'web/static/lib/py.js/lib/py.js',
-            'web/static/src/core/**/*.js',
+            'web/static/src/core/**/*',
             ('remove', 'web/static/src/core/debug/**/*.[js][scss]'),
             'web/static/src/env.js',
             'web/static/src/legacy/js/_deprecated/basic_fields.js',

addons/mail/static/src/public/discuss_public_boot.js

@@ -5,6 +5,7 @@ import { MessagingService } from '@mail/services/messaging/messaging';
 import { getMessagingComponent } from '@mail/utils/messaging_component';
 
 import { processTemplates } from '@web/core/assets';
+import { MainComponentsContainer } from '@web/core/main_components_container';
 import { registry } from '@web/core/registry';
 import { makeEnv, startServices } from '@web/env';
 import { session } from '@web/session';
@@ -58,6 +59,7 @@ export async function boot() {
             autofetchPartnerImStatus: false,
         },
     }));
+    await owl.mount(MainComponentsContainer, { env, target: document.body });
 
     async function createThreadViewFromChannelData(channelData) {
         const messaging = await owl.Component.env.services.messaging.get();