Add preview button to feeds action menu

• Type: Feature Request
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 6.1.0 CE RC1
• Fix Version/s: None
• Component/s: Web Content > Web Content Administration
• Labels: None
• Epic/Theme:
  • WCM

To be able to preview content of web content related FEED, one have to:
1. go to Web Content (in Control Panel or Site Content)
2. click Feeds tab
3. choose Edit from Feed action button
4. scroll all the way to the bottom of page
5. click Preview button

Suggested improvement would introduce Preview option in Feed action button. That would shorten preview case for 3 steps what makes users and testers happier.