Remove whitespaces from vocabulary links, add dedicated exception for

lcsh links that are actually loc links

src/classes/MDNodaLink.php

@@ -36,7 +36,7 @@ final class MDNodaLink {
     public function __construct(MDNodaRepository $source, string $id) {
 
         $this->source = $source;
-        if (($validatedId = $this->source->validateId(trim($id))) === false) {
+        if (($validatedId = $this->source->validateId(strtr(trim($id), [" " => "", "\t" => "", "\n" => ""]))) === false) {
             throw new MDInvalidNodaLink("Invalid noda ID / link: \"" . $id . "\" [Repository: " . $this->source->toDbName() . "]");
         }
         $this->id = $validatedId;