fix: clear error message after successful save

Author: tlipinski

src/app.rs

@@ -530,12 +530,12 @@ impl App {
         }
     }
 
-    fn save_output_to_file(&self) -> Result<()> {
+    fn save_output_to_file(&mut self) -> Result<()> {
         self.save_output_widget
             .save(&self.output_widget.output.lines.join("\n"))
     }
 
-    fn save_command_to_file(&self) -> Result<()> {
+    fn save_command_to_file(&mut self) -> Result<()> {
         self.save_command_widget.save(&format!(
             "#!/usr/bin/env sh\n\n{}",
             self.rura_widget.command_input.value()

src/save_to_file_widget.rs

@@ -25,12 +25,14 @@ impl SaveToFileWidget {
         }
     }
 
-    pub fn save(&self, content: &str) -> anyhow::Result<()> {
+    pub fn save(&mut self, content: &str) -> anyhow::Result<()> {
         let path = PathBuf::from(self.file_path_input.value().trim());
         let mut file = OpenOptions::new().create_new(true).write(true).open(path)?;
 
         write!(file, "{}", content)?;
 
+        self.error_message = None;
+
         Ok(())
     }
 }