fix

napcat.webui/src/utils/theme.ts

@@ -0,0 +1,15 @@
+import { request } from './request'
+
+const style = document.createElement('style')
+document.head.appendChild(style)
+
+export function loadTheme() {
+  request('/files/theme.css?_t=' + Date.now())
+    .then((res) => res.data)
+    .then((css) => {
+      style.innerHTML = css
+    })
+    .catch(() => {
+      console.error('Failed to load theme.css')
+    })
+}