Silently fail to 'enter' regular files

src/app.rs

@@ -1035,10 +1035,14 @@ impl App {
 
     fn enter(self) -> Result<Self> {
         if let Some(path) = self.focused_node().map(|n| n.absolute_path.clone()) {
+            if PathBuf::from(&path).absolutize()?.to_path_buf().is_dir() {
                 self.change_directory(&path, true)
             } else {
                 Ok(self)
             }
+        } else {
+            Ok(self)
+        }
     }
 
     fn back(self) -> Result<Self> {