Better error handling for history

src/shell/history.rs

@@ -12,8 +12,8 @@ pub fn write_to_history(command: &str) -> Result<(), std::io::Error> {
         .write(true)
         .append(true)
         .create(true)
-        .open(&filepath)
-        .unwrap();
+        .open(&filepath)?;
+    
 
     let number = match get_history_number() {
         Ok(n) => n + 1,