Adds/Updates list of schema settings

[plpepin]

New settings:

• number
• color_background
• inline_richtext
• liquid
• video

Changes

• changed "video" (_video) to "video_url" (_video_url) to mean setting of type "video_url"
• re-ordered "_video_url" tab inputs incrementally
• added "video" (_video) to refer to to the new "video" setting type