[FIX] web,calendar: fix mismatched tags

This commit replaces a closing </xpath> with a </div>, and also prevents some
potential issues with class overrides for the div.

closes odoo/odoo#119196

Signed-off-by: Arnaud Joset <arj@odoo.com>

addons/calendar/static/src/views/fields/many2many_attendee_expandable.xml

@@ -2,8 +2,8 @@
 <templates xml:space="preserve">
 
     <t t-name="calendar.Many2ManyAttendeeExpandable" t-inherit="web.Many2ManyTagsAvatarField" t-inherit-mode="primary" owl="1">
-        <div id="many2many_tags_avatar_field_container" position="attributes">
-            <attribute name="class">o_field_tags d-inline-flex flex-wrap w-100</attribute>
+        <xpath expr="//div[hasclass('many2many_tags_avatar_field_container')]" position="attributes">
+            <attribute name="class" remove="mw-100" add="w-100" separator=" "/>
         </xpath>
         <xpath expr="//TagsList" position="attributes">
             <attribute name="itemsVisible">state.expanded ? tags.length : 5</attribute>

addons/web/static/src/views/fields/many2many_tags_avatar/many2many_tags_avatar_field.xml

@@ -3,8 +3,7 @@
 
     <t t-name="web.Many2ManyTagsAvatarField" owl="1">
         <div
-            id="many2many_tags_avatar_field_container"
-            class="o_field_tags d-inline-flex flex-wrap mw-100"
+            class="many2many_tags_avatar_field_container o_field_tags d-inline-flex flex-wrap mw-100"
             t-att-class="{'o_tags_input o_input': !props.readonly}"
         >
             <TagsList tags="tags" itemsVisible="itemsVisible"/>