fix(picture): fix API and application default picture url
fix(picture): fix API and application default picture url

gravitee-io/gravitee-management-webui,lauthieb/gravitee-management-webui,gravitee-io/gravitee-management-webui,M3lkior/gravitee-management-webui,lauthieb/gravitee-management-webui,M3lkior/gravitee-management-webui,gravitee-io/gravitee-management-webui,lauthieb/gravitee-management-webui