We only want full width recent posts when on front-page or full-width template
Remove redundant post count as its now handled per widget
Rename opening and closing tag filter names to remove F5 reference

Accidentally reverted from : 7f50763944ccfffa9e02b0bbc9b78632e56aa3b8
Remove excess markup for the title tag
Add triangle to slider

- Not directly related to this branch, but the design didn't match without the correct
padding and arrow on the slider
Pad the recent posts wrapper
Re-style the recent post widget title
Restyle the recent posts widget title
Style the recent posts within the sidebar