New blog section (#477)

* new blog layout WIP

* contact form - compact variant, some hero section styles

* pagination style

* post fetching WIP

* two cols form

* blog post

* blog post related posts styles

* some refactoring

* forms fixes

* hero section

* breadcrumbs

* fix

* fixes for featured section

* fixes

* blog single page

* single page related posts - mobile view

* single page

* html, share links hover

* input focus styles

* some hovers

* added page-serch

* fixes

* fix compact view of card

* form ids

* related posts, mobile list, css fixes

* blog post archetype

* posts

* turned off cards img animation

* netlify cms update

* removed excessive padding

* readme

* font 500 for news letter form

qdrant-landing/themes/qdrant/static/css/_variables.scss

@@ -1,2 +1,5 @@
 $font-family-non-content: 'SF Pro', 'Roboto', sans-serif;
-$font-family-content: 'Open Sans', sans-serif;
+$font-family-content: 'Open Sans', sans-serif;
+
+$blog-font-family: 'Roboto', sans-serif;
+$blog-text-color: var(--neutral-n-800, #102252);