move quit function from Widget to FileBrowser

src/file_browser.rs

@@ -1032,6 +1032,7 @@ impl Widget for FileBrowser {
     fn on_key(&mut self, key: Key) -> HResult<()> {
         match key {
             Key::Char('/') => { self.turbo_cd()?; },
+            Key::Char('q') => HError::quit()?,
             Key::Char('Q') => { self.quit_with_dir()?; },
             Key::Right | Key::Char('l') => { self.enter_dir()?; },
             Key::Char('L') => { self.open_bg()?; },

src/widget.rs

@@ -150,7 +150,6 @@ pub trait Widget {
     fn on_event(&mut self, event: Event) -> HResult<()> {
         self.clear_status().log();
         match event {
-            Event::Key(Key::Char('q')) => HError::quit(),
             Event::Key(key) => self.on_key(key),
             Event::Mouse(button) => self.on_mouse(button),
             Event::Unsupported(wtf) => self.on_wtf(wtf),