Updated Several Layout(HTML)/CSS changes throughout Showcase

As per title, there are several Layout(HTML)/CSS changes throughout Showcase in the upcoming version. NOTE: A lot of these changes will be made in RMS, AMS and UBS as well.

Items Slider: This block has been updated (both HTML and CSS) to use a minimalistic layout giving it a much cleaner and modern look.

Categories (Category Images) Block: This block has been updated (both HTML and CSS) to use a minimalistic layout giving it a much cleaner and modern look.

Category Content: This block has been updated (both HTML and CSS) to use a minimalistic layout giving it a much cleaner and modern look.

Layout Changes

News View:

• The seriously annoying/pain in the butt to deal with top border for each container has been removed (it is permanently GONE, so don't as as it is NEVER coming back!).
• Narrow Responsive: Adds a Bottom Border for each container

News View II:

• Narrow Responsive: Adds a Bottom Border for each container

Misc: Too many to list individually, but things like Font Sizes, Borders, Padding and Margins have been adjusted in all layouts for better out of the box support with 3rd party styles.

NOTE: I very well could have missed something (extremely busy between XF1 maintenance and XF2 development, so if I remember, I will update).