fix: #1359 empty line wrap count

app/utils.ts

@@ -160,13 +160,13 @@ export function autoGrowTextArea(dom: HTMLTextAreaElement) {
   measureDom.style.width = width + "px";
   measureDom.innerText = dom.value.trim().length > 0 ? dom.value : "1";
 
-  const lineWrapCount = Math.max(0, dom.value.split("\n").length - 1);
+  const emptyLineWrap = Math.max(0, dom.value.split("\n\n").length - 1);
   const height = parseFloat(window.getComputedStyle(measureDom).height);
   const singleLineHeight = parseFloat(
     window.getComputedStyle(singleLineDom).height,
   );
 
-  const rows = Math.round(height / singleLineHeight) + lineWrapCount;
+  const rows = Math.round(height / singleLineHeight) + emptyLineWrap;
 
   return rows;
 }