Compatible with text composition system

src/components/input.tsx

@@ -16,6 +16,10 @@ export const Input = ({
   clearHistory,
 }) => {
   const onSubmit = async (event: React.KeyboardEvent<HTMLInputElement>) => {
+    if (event.isComposing) {
+      return;
+    }
+
     const commands: [string] = history
       .map(({ command }) => command)
       .filter((command: string) => command);