Move previews from conversation to status, put the reply preview arrow back on timeline statuses, add a spinner when the preview is still loading.

src/components/conversation/conversation.js

@@ -1,4 +1,4 @@
-import { reduce, find, filter, sortBy } from 'lodash'
+import { reduce, filter, sortBy } from 'lodash'
 import { statusType } from '../../modules/statuses.js'
 import Status from '../status/status.vue'
 
@@ -10,12 +10,7 @@ const sortAndFilterConversation = (conversation) => {
 const conversation = {
   data () {
     return {
-      highlight: null,
-      preview: {
-        x: 0,
-        y: 0,
-        status: null
-      }
+      highlight: null
     }
   },
   props: [
@@ -86,15 +81,6 @@ const conversation = {
     },
     setHighlight (id) {
       this.highlight = Number(id)
-    },
-    setPreview (id, x, y) {
-      if (id) {
-        this.preview.x = x
-        this.preview.y = y
-        this.preview.status = find(this.conversation, { id: id })
-      } else {
-        this.preview.status = null
-      }
     }
   }
 }