ui tweaks for downstream (archiveweb.page):

- don't show page editing options when in sidebar mode
- don't autorefresh in replay and sidebar not visibile
- disable plugins by default now

src/electron-main.js

@@ -8,4 +8,4 @@ const replayApp = new ElectronReplayApp({
   profileName: "replaywebpage"
 });
 
-replayApp.init();
+replayApp.init(true);