Showing Lock Icon for Private Channels in Feed View for Easy Identification

Show private/public channels in Feeds view It would be super useful to display the lock icon for private channels in the Feed view, just so I didn't have to click into it (or even -- cross-reference back to Slack) to double-check if it's private or public. Namely, seeing that a channel is private would help me think "Yep, that's why we disabled it on the site, that's the correct state we want".