fix(link.dart): use correct field for deserializing type

Author: JKRhb

lib/src/core/definitions/link.dart

@@ -36,7 +36,7 @@ class Link implements Serializable {
     final Set<String> parsedFields = {};
 
     final href = json.parseRequiredUriField("href", parsedFields);
-    final type = json.parseField<String>("@type", parsedFields);
+    final type = json.parseField<String>("type", parsedFields);
     final rel = json.parseField<String>("rel", parsedFields);
     final anchor = json.parseUriField("anchor", parsedFields);
     final sizes = json.parseField<String>("sizes", parsedFields);

test/core/dart_wot_test.dart

@@ -48,7 +48,7 @@ void main() {
             "href": "https://example.org",
             "rel": "icon",
             "anchor": "https://example.org",
-            "@type": "test",
+            "type": "test",
             "sizes": "42x42",
             "test": "test",
             "hreflang": "de",