Refactor: Rename NanoKVM to BatchuKVM and update server URL

web/src/lib/cookie.ts

@@ -0,0 +1,23 @@
+import Cookies from 'js-cookie';
+
+const COOKIE_TOKEN_KEY = 'nano-kvm-token';
+
+export function existToken() {
+  const token = Cookies.get(COOKIE_TOKEN_KEY);
+  return !!token;
+}
+
+export function getToken() {
+  const token = Cookies.get(COOKIE_TOKEN_KEY);
+  if (!token) return null;
+
+  return token;
+}
+
+export function setToken(token: string) {
+  Cookies.set(COOKIE_TOKEN_KEY, token, { expires: 30 });
+}
+
+export function removeToken() {
+  Cookies.remove(COOKIE_TOKEN_KEY);
+}