Add SSR support by checking to render server-side or client-side.

Also made key offsets as trade-off of accuracy and pixel-perfectness.

For publishing.

Remove styled components types.

Correctly declare dependencies.

Use compromise for metrics to produce a more aesthetic rendering.

For republishing in the package repository.

For republishing in the package repository.

Dedicate caches to same functions

For republishing on the package repository.

Prefer using React memoization instead of mem when using inside React.

For republishing on the package repository.

`typescript-memoize` is not used, therefore we can remove it.

For republishing in the package repository.

Add memoization to expensive pure functions because the library involves a lot of computation under the hood.

Declare styled-components as dependency.

Bump version.

Use custom styled keys and add pressed keys for styled key set.

Add files generated from tsdx.