[FIX] mail: offline status icon

Revision on https://github.com/odoo/odoo/commit/07a261db7196d3f7aa7d50d98575c5b6efca9242

When a user is offline, the icon status should be an outline bullet.
However, since the commit above, the offline icon was a plain bullet.
Also, the offline icon is hidden when displayed next to user avatar.

Task-ID 1957966

closes odoo/odoo#31970

Signed-off-by: Xavier Dollé (xdo) <xdo@odoo.com>

addons/mail/static/src/scss/systray.scss

@@ -75,6 +75,10 @@
                     .o_mail_preview_image {
                         width: 40px;
                         height: 40px;
+
+                        .fa-circle-o {
+                            display: none;
+                        }
                     }
                     .o_preview_info {
                         margin-left: 10px;

addons/mail/static/src/scss/thread.scss

@@ -79,6 +79,10 @@
                     position: absolute;
                     bottom: 0;
                     right: 0;
+
+                    &.fa-circle-o {
+                        display: none;
+                    }
                 }
             }
 

addons/mail/static/src/xml/discuss.xml

@@ -183,7 +183,7 @@
         <span t-att-class="partnerID ? 'o_updatable_im_status' : ''" t-att-data-partner-id="partnerID">
             <i t-if="status == 'online'" class="o_mail_user_status o_user_online fa fa-circle" title="Online" role="img" aria-label="User is online"/>
             <i t-if="status == 'away'" class="o_mail_user_status o_user_idle fa fa-circle" title="Idle" role="img" aria-label="User is idle"/>
-            <i t-if="status == 'offline'" class="o_mail_user_status fa fa-circle" title="Offline" role="img" aria-label="User is offline"/>
+            <i t-if="status == 'offline'" class="o_mail_user_status fa fa-circle-o" title="Offline" role="img" aria-label="User is offline"/>
         </span>
     </t>