Implement posting threads (#6049)

* Implement posting a thread

Co-authored-by: Dan Abramov <dan.abramov@gmail.com>

* Fix native build

* Remove dependency on web crypto API

* Fix unrelated TS error (wtf)

---------

Co-authored-by: Mary <148872143+mary-ext@users.noreply.github.com>

package.json

@@ -69,6 +69,7 @@
     "@fortawesome/free-solid-svg-icons": "^6.1.1",
     "@fortawesome/react-native-fontawesome": "^0.3.2",
     "@haileyok/bluesky-video": "0.2.3",
+    "@ipld/dag-cbor": "^9.2.0",
     "@lingui/react": "^4.5.0",
     "@mattermost/react-native-paste-input": "^0.7.1",
     "@miblanchard/react-native-slider": "^2.3.1",
@@ -158,6 +159,7 @@
     "lodash.set": "^4.3.2",
     "lodash.shuffle": "^4.2.0",
     "lodash.throttle": "^4.1.1",
+    "multiformats": "^13.1.0",
     "nanoid": "^5.0.5",
     "normalize-url": "^8.0.0",
     "patch-package": "^6.5.1",