Add avatar fallback for avatar next to publisher

closes #7414

Changelog.md

@@ -17,6 +17,7 @@
 * Fix sharing indicator on profile page for blocked users [#7382](https://github.com/diaspora/diaspora/pull/7382)
 * Remove post only after a successful deletion on the server [#7385](https://github.com/diaspora/diaspora/pull/7385)
 * Fix an issue where pod admins could get logged out when using sidekiq-web [#7395](https://github.com/diaspora/diaspora/pull/7395)
+* Add avatar fallback for typeahead and conversations [#7414](https://github.com/diaspora/diaspora/pull/7414)
 
 ## Features
 * Add links to liked and commented pages [#5502](https://github.com/diaspora/diaspora/pull/5502)

app/assets/javascripts/app/router.js

@@ -217,6 +217,7 @@ app.Router = Backbone.Router.extend({
     app.shortcuts = app.shortcuts || new app.views.StreamShortcuts({el: $(document)});
     if ($("#publisher").length !== 0) {
       app.publisher = app.publisher || new app.views.Publisher({collection: app.stream.items});
+      app.page.setupAvatarFallback($(".main-stream-publisher"));
     }
 
     $("#main_stream").html(app.page.render().el);