Move some initial setup to the 'opened' event

Avoid inbox views digging too deep into conversation views.

// FREEBIE

js/views/conversation_view.js

@@ -27,7 +27,7 @@
             this.listenTo(this.model, 'change:name', this.updateTitle);
             this.listenTo(this.model, 'newmessage', this.addMessage);
             this.listenTo(this.model, 'change:unreadCount', this.onUnread);
-            this.listenTo(this.model, 'opened', this.focusMessageField);
+            this.listenTo(this.model, 'opened', this.onOpened);
 
             this.render();
             twemoji.parse(this.el, { base: '/images/twemoji/', size: 16 });
@@ -85,6 +85,14 @@
             'click .choose-file': 'focusMessageField',
             'loadMore .message-list': 'fetchMessages'
         },
+
+        onOpened: function() {
+            this.view.resetScrollPosition();
+            this.$el.trigger('force-resize');
+            this.focusMessageField();
+            this.model.markRead();
+        },
+
         focusMessageField: function() {
             this.$messageField.focus();
         },

js/views/inbox_view.js

@@ -56,9 +56,6 @@
                     $el = view.$el;
                 }
                 $el.prependTo(this.el);
-                $el.find('.message-list').trigger('reset-scroll');
-                $el.trigger('force-resize');
-                conversation.markRead();
                 conversation.trigger('opened');
             }
         });