Merge remote-tracking branch 'upstream/feat/custom-virtual-scrolling' into shigusegubu

* upstream/feat/custom-virtual-scrolling:
  whoops
  fix data property being called the wrong name in conversation
  fix warnings and console errors
  fix minor bugs
  make virtual scrolling optional in case people want to be able to ctrl-f all page
  rename hidden stuff to virtualHidden, remove log
  add custom solution for virtual scrolling to ease ram and cpu use when scrolling for a long time

src/i18n/en.json

@@ -384,6 +384,7 @@
       "false": "no",
       "true": "yes"
     },
+    "virtual_scrolling": "Optimize timeline rendering",
     "fun": "Fun",
     "greentext": "Meme arrows",
     "notifications": "Notifications",

src/i18n/fi.json

@@ -228,7 +228,8 @@
     "values": {
       "false": "pois päältä",
       "true": "päällä"
-    }
+    },
+    "virtual_scrolling": "Optimoi aikajanan suorituskykyä"
   },
   "time": {
     "day": "{0} päivä",