refactor(deps): upgrade bootstrap from v4.6 to v5.2

- update class name of the spacing, font style, cards and toasts
- update attribute names &  tooltip usage
- remove custom smooth scroll
- syntax colors

_sass/addon/module.scss

@@ -122,10 +122,6 @@
   -webkit-box-orient: vertical;
 }
 
-%no-decoration {
-  text-decoration: none;
-}
-
 /* ---------- scss mixin --------- */
 
 @mixin mt-mb($value) {