fix: Resolve TypeScript errors

Signed-off-by: Hermes Agent <hermes@nosuchhost>

client/node_modules/level-errors/README.md

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+# level-errors
+
+> Error types for [levelup][levelup].
+
+[![level badge][level-badge]](https://github.com/Level/awesome)
+[![npm](https://img.shields.io/npm/v/level-errors.svg?label=&logo=npm)](https://www.npmjs.com/package/level-errors)
+[![Node version](https://img.shields.io/node/v/level-errors.svg)](https://www.npmjs.com/package/level-errors)
+[![Travis](https://img.shields.io/travis/Level/errors.svg?logo=travis&label=)](https://travis-ci.org/Level/errors)
+[![Coverage Status](https://coveralls.io/repos/github/Level/errors/badge.svg)](https://coveralls.io/github/Level/errors)
+[![JavaScript Style Guide](https://img.shields.io/badge/code_style-standard-brightgreen.svg)](https://standardjs.com)
+[![npm](https://img.shields.io/npm/dm/level-errors.svg?label=dl)](https://www.npmjs.com/package/level-errors)
+[![Backers on Open Collective](https://opencollective.com/level/backers/badge.svg?color=orange)](#backers)
+[![Sponsors on Open Collective](https://opencollective.com/level/sponsors/badge.svg?color=orange)](#sponsors)
+
+## API
+
+**If you are upgrading:** please see [`UPGRADING.md`](UPGRADING.md).
+
+### `.LevelUPError()`
+
+Generic error base class.
+
+### `.InitializationError()`
+
+Error initializing the database, like when the database's location argument is missing.
+
+### `.OpenError()`
+
+Error opening the database.
+
+### `.ReadError()`
+
+Error reading from the database.
+
+### `.WriteError()`
+
+Error writing to the database.
+
+### `.NotFoundError()`
+
+Data not found error.
+
+Has extra properties:
+
+- `notFound`: `true`
+- `status`: 404
+
+### `.EncodingError()`
+
+Error encoding data.
+
+## Contributing
+
+[`Level/errors`](https://github.com/Level/errors) is an **OPEN Open Source Project**. This means that:
+
+> Individuals making significant and valuable contributions are given commit-access to the project to contribute as they see fit. This project is more like an open wiki than a standard guarded open source project.
+
+See the [Contribution Guide](https://github.com/Level/community/blob/master/CONTRIBUTING.md) for more details.
+
+## Donate
+
+To sustain [`Level`](https://github.com/Level) and its activities, become a backer or sponsor on [Open Collective](https://opencollective.com/level). Your logo or avatar will be displayed on our 28+ [GitHub repositories](https://github.com/Level), [npm](https://www.npmjs.com/) packages and (soon) [our website](http://leveldb.org). 💖
+
+### Backers
+
+[![Open Collective backers](https://opencollective.com/level/backers.svg?width=890)](https://opencollective.com/level)
+
+### Sponsors
+
+[![Open Collective sponsors](https://opencollective.com/level/sponsors.svg?width=890)](https://opencollective.com/level)
+
+## License
+
+[MIT](LICENSE.md) © 2012-present [Contributors](CONTRIBUTORS.md).
+
+[level-badge]: http://leveldb.org/img/badge.svg
+
+[levelup]: https://github.com/Level/levelup