Add floating status-previews on reply-link mouseover in conversations and make them optional in the settings, fix a small visual inconsistency in muted statuses while editing the file already..

src/modules/config.js

@@ -8,6 +8,7 @@ const defaultState = {
   hideAttachmentsInConv: false,
   hideNsfw: true,
   autoLoad: true,
+  hoverPreview: true,
   muteWords: []
 }