标签滚动条加侧边遮罩，表格越界,导航条加高，夜间模式适配，按钮样式调整

components/DarkModeButton.js

@@ -8,7 +8,7 @@ const DarkModeButton = () => {
     changeTheme(newTheme)
     localStorage.setItem('theme', newTheme)
   }
-  return <div className='z-10 p-1 duration-200 mr-2 h-12 bg-white dark:bg-gray-600 dark:bg-opacity-70 bg-opacity-70 text-xl cursor-pointer dark:text-gray-300 '>
+  return <div className='z-10 p-1 duration-200 mr-2 h-12 text-xl cursor-pointer dark:text-gray-300 '>
     <i className={'fa p-2.5 hover:scale-125 transform duration-200 ' + (theme === 'dark' ? ' fa-sun-o' : ' fa-moon-o') } onClick={handleChangeDarkMode} />
   </div>
 }