fix: change let to const

Author: VladaHarbour

packages/super-editor/src/core/super-converter/exporter.js

@@ -234,7 +234,7 @@ function generateParagraphProperties(node) {
   const { styleId } = attrs;
   if (styleId) pPrElements.push({ name: 'w:pStyle', attributes: { 'w:val': styleId } });
 
-  let { spacing, indent, textAlign, textIndent, lineHeight, marksAttrs, keepLines, keepNext, dropcap } = attrs;
+  const { spacing, indent, textAlign, textIndent, lineHeight, marksAttrs, keepLines, keepNext, dropcap } = attrs;
   if (spacing) {
     const { lineSpaceBefore, lineSpaceAfter, lineRule } = spacing;