fix(fslib): correct the FileHandle implementation (#3889)

* fix(fslib): map `FileHandle` functions to their fd counterpart

* fix: `FileHandle.write`

* refactor: avoid needing tslib update

* test: `FileHandle.read`

* test: `FileHandle.readFile`

* test: `FileHandle.appendFile`

* fix: `FileHandle.writeFile`

* refactor: use symbols for internals

* fix: ref counter

* fix: throw when when using a closed FileHandle

* fix: handle passing `FileHandle` to `fs.promises` functions

* fix: `FileHandle.writev`

* fix: `FileHandle.truncate`

* fix: `FileHandle.chmod`

* chore: versions

* chore: changelog

* chore: install