chore: Add lint-staged

[coderaiser]

According to #562 (comment).

• Added husky to run precommit hook;
• Added lint-staged to lint *.js files;
• Build with rollup before lint, since it can produce an error:

• Instead of npm run fixlint, npm run build used expanded commands to speed things up;
• Run eslint with a --fix flag, since ESLint fixes most issues;

[eslint-github-bot]

Hi @coderaiser!, thanks for the Pull Request

The first commit message isn't properly formatted. We ask that you update the message to match this format, as we use it to generate changelogs and automate releases.

• The length of the commit message must be less than or equal to 72

To Fix: You can fix this problem by running git commit --amend, editing your commit message, and then running git push -f to update this pull request.

Read more about contributing to ESLint here

[eslint-github-bot]

Hi @coderaiser!, thanks for the Pull Request

The pull request title isn't properly formatted. We ask that you update the message to match this format, as we use it to generate changelogs and automate releases.

• The commit message tag wasn't recognized. Did you mean "docs", "fix", or "feat"?
• There should be a space following the initial tag and colon, for example 'feat: Message'.
• The first letter of the tag should be in lowercase

To Fix: You can fix this problem by clicking 'Edit' next to the pull request title at the top of this page.

Read more about contributing to ESLint here

[nzakas]

Thanks so much for taking a look at this! As mentioned, we already have a setup for this in the eslint repo, so it would be best to duplicate that rather than starting from scratch.

[mdjermanovic]

Adding a prepare script doesn't seem necessary because yorkie already runs its bin/install.js on install.

[coderaiser]

Sure, just removed it

[mdjermanovic]

LGTM, thanks! Leaving open for others to review.