Fix linter errors

src/dbp-pdf-annotation-view.js

@@ -112,7 +112,7 @@ export class PdfAnnotationView extends ScopedElementsMixin(DBPLitElement) {
                 return false;
             }
 
-            const pattern = new RegExp('[A-Za-z0-9ÄäÖöÜüß\*\\/?! &@()=+_-]*');
+            const pattern = new RegExp('[A-Za-z0-9ÄäÖöÜüß*\\/?! &@()=+_-]*');
             let matchResult = annotation['value'].match(pattern);
 
             if (matchResult[0] === undefined || annotation['value'].length !== matchResult[0].length) {