fix: await searchParams and params for Next.js 15 async API, compute totalPages in all-users page

thoughts-frontend/app/users/[username]/followers/page.tsx

@@ -4,11 +4,11 @@ import { getFollowersList } from "@/lib/api";
 import { UserListCard } from "@/components/user-list-card";
 
 interface FollowersPageProps {
-  params: { username: string };
+  params: Promise<{ username: string }>;
 }
 
 export default async function FollowersPage({ params }: FollowersPageProps) {
-  const { username } = params;
+  const { username } = await params;
   const token = (await cookies()).get("auth_token")?.value ?? null;
 
   const followersData = await getFollowersList(username, token).catch(