蓝牙未连接时，设置页面不显示待机设置

src/pages/Setting.tsx

@@ -25,9 +25,6 @@ export default function Setting() {
   //     setPort(+evt.target.value);
   //   }
   // };
-  useEffect(() => {
-    dispatch(fetchConfig());
-  }, [dispatch]);
 
   useEffect(() => {
     if (addrInput.current && context.setting.server) {
@@ -36,6 +33,10 @@ export default function Setting() {
     setSelectStandby([context.setting.standbyMinutes]);
   }, [context.setting]);
 
+  useEffect(() => {
+    dispatch(fetchConfig());
+  }, [dispatch]);
+
   const onSaveClick = async () => {
     const server = addrInput.current!.value;
     const res = await dispatch(saveConfig({ server, standbyMinutes: selectStandby[0] })).unwrap();
@@ -71,20 +72,24 @@ export default function Setting() {
             </div>
           </div>
         </section>
-        <section>
-          <div className="h-[42px] px-5">
-            <h1 className="h-[42px] leading-[42px] text-base text-text font-medium">设备设置</h1>
-          </div>
-          <div className="bg-white px-5 text-sm text-text">
-            <div className="h-12 flex items-center" onClick={() => setStandbyPickerVisible(true)}>
-              <span>自动待机</span>
-              <span className="ml-auto mr-4">
-                {standbyMinutes.find((r) => r.value === selectStandby[0])?.label || ''}
-              </span>
-              <img src={icon_arr_r} alt="arr" />
+
+        {context.device.connected && (
+          <section>
+            <div className="h-[42px] px-5">
+              <h1 className="h-[42px] leading-[42px] text-base text-text font-medium">设备设置</h1>
             </div>
-          </div>
-        </section>
+            <div className="bg-white px-5 text-sm text-text">
+              <div className="h-12 flex items-center" onClick={() => setStandbyPickerVisible(true)}>
+                <span>自动待机</span>
+                <span className="ml-auto mr-4">
+                  {standbyMinutes.find((r) => r.value === selectStandby[0])?.label || ''}
+                </span>
+                <img src={icon_arr_r} alt="arr" />
+              </div>
+            </div>
+          </section>
+        )}
+
         <div
           className="btn-contained rounded-md h-12 mx-9 my-8 text-base font-medium"
           onClick={onSaveClick}