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

_javascript/modules/components/back-to-top.js

@@ -15,12 +15,6 @@ export function back2top() {
   });
 
   $('#back-to-top').on('click', () => {
-    $('body,html').animate(
-      {
-        scrollTop: 0
-      },
-      800
-    );
-    return false;
+    window.scrollTo(0, 0);
   });
 }