feat: Add markdown toggle (alt+m) to switch between rendered and raw… (#10383)

Co-authored-by: Jacob Richman <jacob314@gmail.com>

packages/cli/src/ui/components/RawMarkdownIndicator.tsx

@@ -0,0 +1,21 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import type React from 'react';
+import { Box, Text } from 'ink';
+import { theme } from '../semantic-colors.js';
+
+export const RawMarkdownIndicator: React.FC = () => {
+  const modKey = process.platform === 'darwin' ? 'option+m' : 'alt+m';
+  return (
+    <Box>
+      <Text>
+        raw markdown mode
+        <Text color={theme.text.secondary}> ({modKey} to toggle) </Text>
+      </Text>
+    </Box>
+  );
+};