Optimize typography

- Set the table width to 100% on small screens
- Optimize list style
- Optimize image style
- Make checkbox color lighter (light mode)
- Reduce the space for inline code

assets/css/_addon/module.scss

@@ -96,7 +96,6 @@
   color: $color;
   font-size: $font-size;
   font-weight: $font-weight;
-  font-family: 'Roboto Condensed', 'Microsoft Yahei', sans-serif;
 }
 
 @mixin panel-label {