replace spaces with tab

Author: wetret

dsf-fhir/dsf-fhir-server/src/main/resources/fhir/static/dsf.css

@@ -1258,7 +1258,7 @@ a#download {
 	stroke-linecap: round;
 	stroke-linejoin: round;
 	margin-top: -0.5em;
-    margin-right: -0.25em;
+	margin-right: -0.25em;
 }
 
 .collapse-button-rotated {