feat: add ColumnType as_str method and improve error handling

src/modes/list.rs

@@ -69,8 +69,9 @@ pub fn mode_list(
     for column in list_format.clone() {
         let mut column_format = column.split(":").into_iter();
         let column_name = column_format.next().expect("Unable to parse column name");
-        let column_type = ColumnType::from_str(column_name)
-            .expect(format!("Unknown column {:?}", column_name).as_str());
+        let column_type = ColumnType::from_str(column_name).map_err(|_| {
+            anyhow!("Unknown column {:?}", column_name)
+        })?;
 
         if column_type == ColumnType::Meta {
             let meta_name = column_format