アイヌ語追加 (#428) (#433)

Reviewed-on: #433
Co-authored-by: miteruzo <miteruzo@naver.com>

frontend/src/lib/renderContext.ts

@@ -0,0 +1,18 @@
+export type RenderContext = {
+    pathname: string
+    origin: string
+    apiBaseURL?: string
+    cookie?: string
+    setCookies?: string[]
+    csrf?: { token?: string; pending?: Promise<string> }
+    forwardedFor?: string
+    status?: number }
+
+
+// The server build replaces this module with the AsyncLocalStorage implementation.
+export const currentRenderContext = (): RenderContext | undefined => {
+  if (typeof window === 'undefined')
+    return undefined
+  return { pathname: window.location.pathname,
+      origin: window.location.origin }
+}