fix(policies): reduce delete policy icon width to avoid unexpected action
fix(policies): reduce delete policy icon width to avoid unexpected action

This closes gravitee-io/issues#497

gravitee-io/gravitee-management-webui,lauthieb/gravitee-management-webui,lauthieb/gravitee-management-webui,gravitee-io/gravitee-management-webui,lauthieb/gravitee-management-webui,gravitee-io/gravitee-management-webui