feat: 更新 API 地址，优化样式和组件，添加新主题变量

src/api/index.ts

@@ -1,6 +1,10 @@
 import type { App } from "@riwa/api-types";
 import { treaty } from "@elysiajs/eden";
 
-const api = treaty<App>(`${window.location.origin}/api`);
+const client = treaty<App>(`${window.location.origin}/api`, {
+  fetch: {
+    credentials: "include",
+  },
+});
 
-export { api };
+export { client };