Offcanvas

<Bs::Button {{on "click" (fn (mut this.showOffcanvas) true)}}>
  Launch demo offcanvas
</Bs::Button>

{{#if this.showOffcanvas}}
  <Bs::Offcanvas
    @placement="end"
    {{!-- @scroll={{true}}
    @backdrop={{false}} --}}
    @onClose={{fn (mut this.showOffcanvas) false}}
    as |offcanvas|
  >
    <offcanvas.header @title="My Title" />
    <offcanvas.body>My Body</offcanvas.body>
  </Bs::Offcanvas>
{{/if}}