Refactoring: fix small errors, simplify 'sortedByLevehnstein'-function, improve error messgae

src/UI/InputElement/ValidatedInput.svelte

@@ -166,8 +166,7 @@
       "'; did you perhaps mean one of: " +
       Utils.sortedByLevenshteinDistance(
         type,
-        Validators.AllValidators.map((v) => v.name),
-        (v) => v
+        Validators.AllValidators.map((v) => v.name)
       )
         .slice(0, 5)
         .join(", ")

src/UI/InputElement/Validators/DistanceValidator.ts

@@ -47,7 +47,7 @@ export default class DistanceValidator extends Validator {
         if (bg && eliCategory.indexOf(bg) < 0) {
             return (
                 "The given background layer is not a recognized ELI-type. Perhaps you meant one of " +
-                Utils.sortedByLevenshteinDistance(bg, eliCategory, (x) => x).slice(0, 5)
+                Utils.sortedByLevenshteinDistance(bg, eliCategory).slice(0, 5)
             )
         }
         if (typeof args["zoom"] !== "number") {