Fix some commands not showing names in palette (helix-editor#4223)

Author: mitsuhiko

helix-term/src/commands.rs

@@ -2433,11 +2433,11 @@ impl ui::menu::Item for MappableCommand {
         match self {
             MappableCommand::Typable { doc, name, .. } => match keymap.get(name as &String) {
                 Some(bindings) => format!("{} ({}) [{}]", doc, fmt_binding(bindings), name).into(),
-                None => doc.as_str().into(),
+                None => format!("{} [{}]", doc, name).into(),
             },
             MappableCommand::Static { doc, name, .. } => match keymap.get(*name) {
                 Some(bindings) => format!("{} ({}) [{}]", doc, fmt_binding(bindings), name).into(),
-                None => (*doc).into(),
+                None => format!("{} [{}]", doc, name).into(),
             },
         }
     }