Editor embeds (#680)

- [x] Make deleting an embed easier
- [x] Add document level ability to disable embeds
- [x] Add team level ability to disable embeds
- [x] GitHub
- [x] Numeracy
- [x] Mode Analytics
- [x] Figma
- [x] Airtable
- [x] Vimeo
- [x] RealtimeBoard
- [x] Loom
- [x] Lucidcharts
- [x] Framer
- [x] InVision
- [x] Typeform
- [x] Marvel
- [x] Spotify
- [x] Codepen
- [x] Trello

package.json

@@ -159,7 +159,7 @@
     "react-waypoint": "^7.3.1",
     "redis": "^2.6.2",
     "redis-lock": "^0.1.0",
-    "rich-markdown-editor": "^6.1.1",
+    "rich-markdown-editor": "^7.0.0-1",
     "safestart": "1.1.0",
     "sequelize": "4.28.6",
     "sequelize-cli": "^2.7.0",