Reduce font-size for h1

This will make longer blog titles fit better on small screens.

References #83
Make room for timestamp msg in entry editor on small screens

References #83
Reposition media selector bar on small screens

References #83
No margin for action buttons on small screens

Reference #83
Make filter buttons in comment data smaller

References #83
Fix headings in content lists on small screens

References #83
Realign filter form elements on small screens

References #83
The form elements need to be a wee bit smaller

References #83