fix(style): Retrieve the default icon for API and application from correct path
fix(style): Retrieve the default icon for API and application from correct path

Closes #131

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