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

_layouts/archives.html

@@ -23,7 +23,7 @@ layout: page
   <li>
   {% assign ts = post.date | date: '%s' %}
     <span class="date day" data-ts="{{ ts }}" data-df="DD">{{ post.date | date: "%d" }}</span>
-    <span class="date month small text-muted ml-1" data-ts="{{ ts }}" data-df="{{ df_dayjs_m }}">
+    <span class="date month small text-muted ms-1" data-ts="{{ ts }}" data-df="{{ df_dayjs_m }}">
       {{ post.date | date: df_strftime_m }}
     </span>
     <a href="{{ post.url | relative_url }}">{{ post.title }}</a>