Make actions box available to non-JS users

Action boxes (currently only used for moderation) are represented by some icon
(.flow-actions-link) that, when clicked, display a flyout window
(.flow-actions-flyout)

Non-JS users won't have javascript bind the event to display the flyout, so
let's make sure the functionality is not hidden from them.

Change-Id: I0f989bb5c1df5c0971df1bf141fad4ce4fc489ba
Merge "Make actions box available to non-JS users"