Handle the Help event

ChangeLog.md

@@ -1,5 +1,12 @@
 # Hike ChangeLog
 
+## Unreleased
+
+**Released: WiP**
+
+- Fixed the `help` command in the command line widget not pulling up the
+  help dialog. ([#117](https://github.com/davep/hike/pull/117))
+
 ## v1.1.1
 
 **Released: 2025-08-03**

src/hike/screens/main.py

@@ -210,6 +210,11 @@ def _watch_navigation_visible(self) -> None:
         with update_configuration() as config:
             config.navigation_visible = self.navigation_visible
 
+    @on(Help)
+    async def _show_help(self) -> None:
+        """Handle the help action."""
+        await self.run_action("help_command")
+
     @on(HandleInput)
     def _handle_input(self, message: HandleInput) -> None:
         """Handle input as if the user had typed it in.