linked style does not work correctly with an entry plus a button
Setting an Entry (or PasswordEntry) together with a button with the linked
style won't properly link both widgets.
Example code:
<object class="GtkBox">
<child>
<object class="GtkEntry"/>
</child>
<child>
<object class="GtkButton">
<property name="icon_name">user-trash-symbolic</property>
</object>
</child>
<style>
<class name="linked"/>
</style>
</object>