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>

metro.config.js

@@ -6,6 +6,32 @@ cfg.resolver.sourceExts = process.env.RN_SRC_EXT
   ? process.env.RN_SRC_EXT.split(',').concat(cfg.resolver.sourceExts)
   : cfg.resolver.sourceExts
 
+if (cfg.resolver.resolveRequest) {
+  throw Error('Update this override because it is conflicting now.')
+}
+cfg.resolver.resolveRequest = (context, moduleName, platform) => {
+  // HACK: manually resolve a few packages that use `exports` in `package.json`.
+  // A proper solution is to enable `unstable_enablePackageExports` but this needs careful testing.
+  if (moduleName.startsWith('multiformats/hashes/hasher')) {
+    return context.resolveRequest(
+      context,
+      'multiformats/dist/src/hashes/hasher',
+      platform,
+    )
+  }
+  if (moduleName.startsWith('multiformats/cid')) {
+    return context.resolveRequest(
+      context,
+      'multiformats/dist/src/cid',
+      platform,
+    )
+  }
+  if (moduleName === '@ipld/dag-cbor') {
+    return context.resolveRequest(context, '@ipld/dag-cbor/src', platform)
+  }
+  return context.resolveRequest(context, moduleName, platform)
+}
+
 cfg.transformer.getTransformOptions = async () => ({
   transform: {
     experimentalImportSupport: true,