fixed all warnings that show up when just opening the main UI

src/components/status_content/status_content.js

@@ -90,6 +90,9 @@ const StatusContent = {
       }
       return true
     },
+    localCollapseSubjectDefault () {
+      return this.mergedConfig.collapseMessageWithSubject
+    },
     attachmentSize () {
       if (this.compact) {
         return 'small'