#9: make the user-chosen path more clear to see.

src/app/page.tsx

@@ -25,6 +25,7 @@ export default function Home() {
                     <h1>The Maze ({state.maze!.width}x{state.maze!.height}, Algorithm: {state.maze!.algorithm},
                         ID: {state.maze!.id})</h1>
                     <input type={"checkbox"}
+                           checked={state.showSolution}
                            onChange={(e) => {
                                dispatch(actionToggledShowSolution(e.target.checked));
                            }}