feat(WEB-36): improve typings

app/[lang]/current-content-page/page.tsx

@@ -4,13 +4,17 @@ import path from "node:path";
 
 import Header from "@/components/Current/Header";
 
-import type { Params, SearchParams } from "@/types/params";
+import type { PageArgs, LangParams, UriParams } from "@/types/params";
 
 export default async function CurrentContentPage({
   params,
   searchParams,
-}: Params<SearchParams>) {
+}: PageArgs<LangParams, UriParams>) {
   try {
+    if (!searchParams.uri) {
+      throw new Error("Bad URI");
+    }
+
     const filePath = path.join(
       process.cwd(),
       "mockCms",