[FIX] export: remove line returns in formula

before this commit, the exported formulas contained line returns. It woudn't show properly in google sheet.

after this commit, the line returns have been removedd

Task: 3618912
Part-of: #3566

src/xlsx/functions/cells.ts

@@ -41,12 +41,7 @@ export function addFormula(cell: ExcelCellData): {
       attrs.push(["t", "str"]);
       cycle = escapeXml/*xml*/ `<v>${cell.value}</v>`;
     }
-    node = escapeXml/*xml*/ `
-      <f>
-        ${XlsxFormula}
-      </f>
-      ${cycle}
-    `;
+    node = escapeXml/*xml*/ `<f> ${XlsxFormula} </f> ${cycle}`;
     return { attrs, node };
   } else {
     // Shouldn't we always output the value then ?

src/xlsx/functions/worksheet.ts

@@ -91,11 +91,10 @@ export function addRows(
           ));
         }
         attributes.push(...additionalAttrs);
-        cellNodes.push(escapeXml/*xml*/ `
-          <c ${formatAttributes(attributes)}>
-            ${cellNode}
-          </c>
-        `);
+        // prettier-ignore
+        cellNodes.push(escapeXml/*xml*/ `<c ${formatAttributes(attributes)}>
+  ${cellNode}
+</c>`);
       }
     }
     if (cellNodes.length || row.size !== DEFAULT_CELL_HEIGHT || row.isHidden) {