ヘルプを Wiki から分離 (#424) (#430)

画面上でのテストは完了．
移行にす早さが求められるので，準備ができたらマージする．

Reviewed-on: #430
Co-authored-by: miteruzo <miteruzo@naver.com>

frontend/vite.config.ts

@@ -1,12 +1,28 @@
 import mdx from '@mdx-js/rollup'
 import react from '@vitejs/plugin-react'
 import path from 'path'
+import remarkGFM from 'remark-gfm'
 import { defineConfig } from 'vite'
 
+import { helpAssets } from './scripts/help-assets'
+
+const mdxPlugin = mdx ({ providerImportSource: '@/mdx-components',
+			 remarkPlugins: [remarkGFM] })
+const originalTransform = mdxPlugin.transform
+
+if (typeof originalTransform === 'function')
+  {
+    mdxPlugin.transform =
+	function (code, id)
+	{
+	  return (/[?&](raw|url)(?:&|$)/.test (id)
+		  ? null
+		  : originalTransform.call (this, code, id))
+	}
+  }
 
-// https://vite.dev/config/
 export default defineConfig ({
-    plugins:  [mdx ({ providerImportSource: '@/mdx-components' }), react ()],
+    plugins:  [helpAssets (), mdxPlugin, react ()],
     resolve:  { alias: { '@': path.resolve (__dirname, './src') } },
     server:   { host:         true,
 		port:         5173,