Blog links refresh

[akronb]

Changes in this PR:

• Added a partial that shows the right language title for its shortcode
• Removed unused archetypes directory
• Tweaked the way blog links look on the index page – now only the title is a clickable link
• Gave some breathing space between the page title and the links
• Increased the post date font size and made its font color more contrasting
• Increased the font size for translations and revamped the separators between different languages.

Redesign

before	after

[akronb]

Also, I found a template for the /post page. Do you want to keep it, or can I delete it?