<LinkTo
  class="toolbar-link"
  @params={{params}}
  @data-test-secret-edit={{data-test-secret-edit}}
  @data-test-secondary-add={{data-test-secondary-add}}
  @data-test-configure-link={{data-test-configure-link}}
  @data-test-alias-edit-link={{data-test-alias-edit-link}}
  @data-test-entity-edit-link={{data-test-entity-edit-link}}
  @data-test-entity-merge-link={{data-test-entity-merge-link}}
  @data-test-backend-view-link={{data-test-backend-view-link}}
  @data-test-entity-create-link={{data-test-entity-create-link}}
  @data-test-policy-create-link={{data-test-policy-create-link}}
  @data-test-policy-edit-toggle={{data-test-policy-edit-toggle}}
  @data-test-secret-backend-configure={{data-test-secret-backend-configure}}
>
  {{yield}}
  <ICon @glyph={{glyph}} @size=12 />
</LinkTo>

<LinkTo
  class="toolbar-link"
  @params={{params}}
  data-test-secret-edit={{data-test-secret-edit}}
  data-test-secondary-add={{data-test-secondary-add}}
  data-test-configure-link={{data-test-configure-link}}
  data-test-alias-edit-link={{data-test-alias-edit-link}}
  data-test-entity-edit-link={{data-test-entity-edit-link}}
  data-test-entity-merge-link={{data-test-entity-merge-link}}
  data-test-backend-view-link={{data-test-backend-view-link}}
  data-test-entity-create-link={{data-test-entity-create-link}}
  data-test-policy-create-link={{data-test-policy-create-link}}
  data-test-policy-edit-toggle={{data-test-policy-edit-toggle}}
  data-test-secret-backend-configure={{data-test-secret-backend-configure}}
>
  {{yield}}
  <ICon @glyph={{glyph}} @size=12 />
</LinkTo>

Remove @ attributes from ToolbarLink
Remove @ attributes from ToolbarLink
