FIX: Copied csv had an extra line

Fixes #393

base/src/test/user_model/test_paste_csv.rs

@@ -167,7 +167,7 @@ fn copy_paste_internal() {
     let copy = model.copy_to_clipboard().unwrap();
     assert_eq!(
         copy.csv,
-        "42\t127\n\"A season of faith\t \"\"perfection\"\"\"\t\n"
+        "42\t127\n\"A season of faith\t \"\"perfection\"\"\""
     );
     assert_eq!(copy.range, (1, 1, 2, 2));
 

base/src/user_model/common.rs

@@ -1641,7 +1641,7 @@ impl UserModel {
         .map_err(|e| format!("Error converting from utf8: '{e}'"))?;
 
         Ok(Clipboard {
-            csv,
+            csv: csv.trim().to_string(),
             data,
             sheet,
             range: (row_start, column_start, row_end, column_end),

webapp/IronCalc/src/components/Workbook/Workbook.tsx

@@ -473,7 +473,7 @@ const Workbook = (props: { model: Model; workbookState: WorkbookState }) => {
           sheet,
           clipboardId,
         });
-        event.clipboardData.setData("text/plain", data.csv);
+        event.clipboardData.setData("text/plain", data.csv.trim());
         event.clipboardData.setData("application/json", clipboardJsonStr);
         event.preventDefault();
         event.stopPropagation();