feat: post styles and transition improvements

(cherry picked from commit 53d2c803be5c9bc81ed1705d7053a8fde8bafe27)

src/components/widget/DisplaySetting.astro

@@ -72,6 +72,10 @@ const enableBanner = getConfig().banner.enable;
         border-radius: 4px;
         background: rgba(255, 255, 255, 0.7);
         box-shadow: none;
+
+.banner-closed
+  #display-setting
+    border-width: 3px
 </style>
 
 <style>