[16KB] use 16kb-compatible fork of react-native-mmkv (#9150)

* use 16kb-compatible fork of react-native-mmkv

* avoid using package alias

* specify ndk version

* Revert "specify ndk version"

This reverts commit 577393518e.

* add compiler flags to mmkv build (bump version)

* move fork to bsky repo/npm org

src/storage/index.ts

@@ -1,5 +1,5 @@
 import {useCallback, useEffect, useState} from 'react'
-import {MMKV} from 'react-native-mmkv'
+import {MMKV} from '@bsky.app/react-native-mmkv'
 
 import {type Account, type Device} from '#/storage/schema'