Fix leading space in downloaded files. This made osm.xml files invali…

…d and caused really confusing import problems

web/src/common/utils.ts

@@ -9,7 +9,7 @@ export function downloadGeneratedFile(filename: string, textInput: string) {
   var element = document.createElement("a");
   element.setAttribute(
     "href",
-    "data:text/plain;charset=utf-8, " + encodeURIComponent(textInput),
+    "data:text/plain;charset=utf-8," + encodeURIComponent(textInput),
   );
   element.setAttribute("download", filename);
   document.body.appendChild(element);