clean video

app/models/communication/block.rb

...ommunication/blocks/components/rich_text/_static.html.erb

.../communication/blocks/components/string/_preview.html.erb

...n/communication/blocks/components/string/_static.html.erb

...admin/communication/blocks/components/text/_edit.html.erb

...in/communication/blocks/components/text/_preview.html.erb

...min/communication/blocks/components/text/_static.html.erb

...admin/communication/blocks/templates/video/_edit.html.erb

...in/communication/blocks/templates/video/_preview.html.erb

...min/communication/blocks/templates/video/_static.html.erb

config/locales/communication/en.yml