galicea-odoo-addons-ecosystem/galicea_toolset/views/data.xml

<odoo>
  <data>
    <template id="assets_backend" inherit_id="web.assets_backend">
      <xpath expr="." position="inside">
        <script src="/galicea_toolset/static/src/js/iframe_widget.js" type="text/javascript" />
        <script src="/galicea_toolset/static/src/js/one2many_flexible_widget.js" type="text/javascript" />
        <script src="/galicea_toolset/static/src/js/client_actions.js" type="text/javascript" />
      </xpath>
    </template>
  </data>
</odoo>