Fetch Public and TWKN timelines when viewed.

src/components/public_timeline/public_timeline.js

@@ -5,7 +5,14 @@ const PublicTimeline = {
   },
   computed: {
     timeline () { return this.$store.state.statuses.timelines.public }
+  },
+  created () {
+    this.$store.dispatch('startFetching', 'public')
+  },
+  destroyed () {
+    this.$store.dispatch('stopFetching', 'public')
   }
+
 }
 
 export default PublicTimeline