Add/remove/modify icons for sitge messaging
Ensure release message isn't shown to video users
Refactor release message template for new styling
Refacotr release message styling
Add release message logic to media bootstrap
don't show video release message to mobile users
Add the padding back to rlease messaging at wider breakpoints
Remove network-front opt-in modal message
Tweak release meaage copy
Don't show close btn copy
Styling tweaks on release messaging before release
Coding conventions
fix merge conflicts
Peer review changes and coding conventions
Merge pull request #5397 from guardian/release-message

New release message styling, and video release messaging copy