* fix(deps): Bump @polkadot/api to v1.15.0-beta.8

* withdrawUnbonded takes args

* docs

BREAKING CHANGE:

`BaseTxInfo` now takes an additional `transactionVersion` field.

* fix: Add options parameter to all methods

* Add comments

* Docs

* no docs on example

* Small tweaks

Bumps [ts-jest](https://github.com/kulshekhar/ts-jest) from 25.3.1 to 25.4.0.
- [Release notes](https://github.com/kulshekhar/ts-jest/releases)
- [Changelog](https://github.com/kulshekhar/ts-jest/blob/master/CHANGELOG.md)
- [Commits](https://github.com/kulshekhar/ts-jest/compare/v25.3.1...v25.4.0

)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

* fix(deps): Update @polkadot/api to v1.9-stable

* docs

* Remove useless comment

`democracy.vote` and `democracy.proxyVote` now take a `AccountVote` object as input, instead of the simple `Vote`

* chore(deps-dev): bump @amaurymartiny/config from 1.0.11 to 1.1.0

Bumps [@amaurymartiny/config](https://github.com/amaurymartiny/config) from 1.0.11 to 1.1.0.
- [Release notes](https://github.com/amaurymartiny/config/releases)
- [Changelog](https://github.com/amaurymartiny/config/blob/master/CHANGELOG.md)
- [Commits](https://github.com/amaurymartiny/config/compare/v1.0.11...v1.1.0

)

Signed-off-by: dependabot-preview[bot] <[email protected]>

* Run yarn lint --fix

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

* refactor: Use registry.createType

* Update polkadot/api

* fix: Let tsc only build src folder

* Fix lint

* Fix security vulnerabilities