Merge pull request #129 from estebanthi/fixed_thumbnail_reg

Fix incorrect THUMBNAIL_REG regex in scoreinfo

Author: PeterNjeim

src/scoreinfo.ts

@@ -147,7 +147,7 @@ export class SheetInfoInPage extends SheetInfo {
 export class SheetInfoHtml extends SheetInfo {
     private readonly PAGE_COUNT_REG = /pages(?:"|"):(\d+)/;
     private readonly THUMBNAIL_REG =
-        /<link (?:.*) href="(.*)" rel="preload" as="image"/;
+        /<link[^>]*?href="([^"]+)"[^>]*?rel="preload"[^>]*?as="image"/;
 
     private readonly DIMENSIONS_REG =
         /dimensions(?:&quot;|"):(?:&quot;|")(\d+)x(\d+)(?:&quot;|"),/;