[FIX] website_event_track_quiz: show community menu button

In the event form the "community" button is supposed to be shown when
"track quiz" is installed.

However when this was done in [1] there a mistake was made and only the
label was removed, as well as the wrong field added after it. That field
was removed in [2] but it was again not noticed that only the label was
made visible.

It may not appear easily because installing website_event_meet also
unhides both the label and the field. Hence you only ge this issue when
installing track quiz without it.

However in 18.3 [3] removed website_event_meet which means the issue
is not corrected anymore.

task-5159806

[1]: 147cf5f
[2]: c0f0f9f
[3]: 9cab4f8

closes odoo#231132

X-original-commit: e3748a3
Signed-off-by: Thibault Delavallee (tde) <[email protected]>

Author: reth-odoo

addons/website_event_track_quiz/views/event_event_views.xml

@@ -9,6 +9,9 @@
             <xpath expr="//label[@for='community_menu']" position="attributes">
                 <attribute name="invisible">0</attribute>
             </xpath>
+            <field name="community_menu" position="attributes">
+                <attribute name="invisible">0</attribute>
+            </field>
         </field>
     </record>