Problem

Currently when a user receives a PN, we show a very generic message (no indication of sender, body, etc). This will change in the future (e.g. with status-im/status-react#7043), so it would be good to be more explicit about the fact that we are showing a generic PN message due to the db being locked. Also, since we may receive PNs from users we've since removed

Issue: Clicking/tapping a link within an entry/post just opens a blank page.

Expected behaviour: Clicking a link in an entry/post should trigger opening a browser

[Side related nitpick: For the general "open in browser" function - does it need to be within a three-dot menu which only has one item? Couldn't it just be (1 tap) icon like the "mark unread" button?]

When upgrading react-navigation to 2.0, I'm getting a lot of "The StackNavigator
function name is deprecated, please use createStackNavigator instead", which is
fixed easily enough by something like this.

(src/clsjs_react_navigation/base.cljs)

 ;; Navigators
 (defonce createNavigator (gobj/get ReactNavigation #js ["createNavigator"]))
-(defonce StackNavigator (gobj/get ReactNaviga