Add keyboard shortcuts: new, escape, and hard break (#552)

* Add keyboard shortcuts: new, escape, and hard break

* Add preferences modal

* Remove code accidentally re-added due to rebase

* Fix incorrect copy and lint

* Put stuff back so diffs are clearer

* Re-add invite codes to settings

* Address comments

* Tune the copy

---------

Co-authored-by: Paul Frazee <pfrazee@gmail.com>

package.json

@@ -49,6 +49,7 @@
     "@sentry/react-native": "4.13.0",
     "@tiptap/core": "^2.0.0-beta.220",
     "@tiptap/extension-document": "^2.0.0-beta.220",
+    "@tiptap/extension-hard-break": "^2.0.3",
     "@tiptap/extension-history": "^2.0.3",
     "@tiptap/extension-link": "^2.0.0-beta.220",
     "@tiptap/extension-mention": "^2.0.0-beta.220",
@@ -58,6 +59,7 @@
     "@tiptap/pm": "^2.0.0-beta.220",
     "@tiptap/react": "^2.0.0-beta.220",
     "@tiptap/suggestion": "^2.0.0-beta.220",
+    "@types/node": "^18.16.2",
     "@zxing/text-encoding": "^0.9.0",
     "await-lock": "^2.2.2",
     "base64-js": "^1.5.1",