Merge branch 'master' into themes/pdd

# Conflicts:
#	src/App.tsx

src/App.tsx

@@ -15,6 +15,7 @@ import { fishermanTheme } from './themes/fisherman';
 import { jinlunTheme } from './themes/jinlun';
 import { ikunTheme } from './themes/ikun';
 import { pddTheme } from './themes/pdd';
+import { BeiAn } from './themes/BeiAn';
 
 // 主题
 const themes = [defaultTheme, fishermanTheme, jinlunTheme, ikunTheme, pddTheme];
@@ -186,11 +187,14 @@ const App: FC = () => {
 
     // 主题切换
     useEffect(() => {
-        setBgmOn(false);
+        // 初始化时不加载bgm
+        if (once) {
+            setBgmOn(false);
+            setTimeout(() => {
+                setBgmOn(true);
+            }, 300);
+        }
         restart();
-        setTimeout(() => {
-            setBgmOn(true);
-        }, 300);
     }, [curTheme]);
 
     // 队列区排序
@@ -445,6 +449,8 @@ const App: FC = () => {
                 </span>
             </p>
 
+            <BeiAn />
+
             {finished && (
                 <div className="modal">
                     <h1>{tipText}</h1>

src/themes/BeiAn.tsx

@@ -0,0 +1,15 @@
+import React, { FC } from 'react';
+
+export const BeiAn: FC = () => {
+    return (
+        <p style={{ textAlign: 'center' }}>
+            <a
+                href="https://beian.miit.gov.cn/"
+                target="_blank"
+                rel="noopener noreferrer nofollow"
+            >
+                浙ICP备17007857号-2
+            </a>
+        </p>
+    );
+};