Modify updateDesignerArea to allow processing without records

Commented out the early return statement in updateDesignerArea function.

Author: shvyac

QSL_card_designer.html

@@ -408,7 +408,7 @@ <h2>QSL Card Designer (QSLカードデザイナー)</h2>
   const area = document.getElementById('designerArea');
   // Remove all .field divs
   Array.from(area.querySelectorAll('.field')).forEach(f=>f.remove());
-  if (!adifRecords.length) return;
+//  if (!adifRecords.length) return;
   const rec = adifRecords[qsoIdx] || {};
   // add fields
   designerFields.forEach((f, i)=>{