Implemented language selection

frontend/src/app/[locale]/Header.tsx

@@ -0,0 +1,65 @@
+import {
+  Navbar as NextUINavbar,
+  NavbarContent,
+  NavbarMenuToggle,
+  NavbarBrand,
+  NavbarItem,
+  Link as NextUiLink
+} from "@nextui-org/react";
+import { useTranslations } from "next-intl";
+import { siteConfig } from "@/config/site";
+import { Link } from "@/src/navigation";
+import LangSwitch from "./LangSwitch";
+import { ThemeSwitch } from "@/components/theme-switch";
+import { GithubIcon } from "@/components/icons";
+
+import Image from "next/image";
+
+export default function Header(params: { locale: string }) {
+  const t = useTranslations("Index");
+
+  return (
+    <NextUINavbar maxWidth="xl" position="sticky" className="bg-inherit">
+      <NavbarContent className="basis-1/5 sm:basis-full" justify="start">
+        <NavbarBrand as="li" className="gap-3 max-w-fit">
+          <Link
+            className="flex justify-start items-center gap-1"
+            href="/"
+            locale={params.locale}
+          >
+            <Image
+              src="/favicon/android-chrome-192x192.png"
+              width={32}
+              height={32}
+              alt="Logo"
+            />
+            <p className="font-bold text-inherit">Test Case Manager</p>
+          </Link>
+        </NavbarBrand>
+        {siteConfig.navItems.map((item) => (
+          <NavbarItem key={item.href}>
+            <Link
+              className="data-[active=true]:text-primary data-[active=true]:font-medium"
+              href={item.href}
+              locale={params.locale}
+            >
+              {item.label}
+            </Link>
+          </NavbarItem>
+        ))}
+      </NavbarContent>
+
+      <NavbarContent className="basis-1 pl-4" justify="end">
+        <NextUiLink
+          isExternal
+          href="https://github.com/kimatata/TestCaseManager"
+          aria-label="Github"
+        >
+          <GithubIcon className="text-default-500" />
+        </NextUiLink>
+        <ThemeSwitch />
+        <LangSwitch locale={params.locale} />
+      </NavbarContent>
+    </NextUINavbar>
+  );
+}