[FIX] note: css margins of next activity

Fix CSS so it is more in line with other kanban tiles and avoid
unecessary margins.

opw-1817718
closes #24128

addons/note/views/note_views.xml

@@ -114,7 +114,7 @@
                   <!-- title -->
                   <field name="name"/>
                   <div class="oe_kanban_bottom_right">
-                    <div class="o_kanban_inline_block mt16 mr4">
+                    <div class="o_kanban_inline_block mr4">
                         <field name="activity_ids" widget="kanban_activity" />
                     </div>
                   </div>