Add toggle video option to Facia tool
Add 'showMainVideo' field to Content
Show main video on Facia front if set to do so in item metadata
Press showMainVideo property in metadata
Only show video option if main media type is video
Stylistic JS fixes ...
Fix broken transformations spec
Merge pull request #5675 from guardian/add-use-video-option-to-facia-tool

Add use main media video option to facia tool