ci: fix git hook, ESLint and CI setting to work properly

[isoppp]

Overview

This PR solves these problems.

• yarn eslint will freeze while it's running.
• Compared to old repository, there are some missing file
• lint-staged does not catch any staged files when running git-hook

What I've done

• Add eslintignore
  • Old repository had ignored graphql-client-api.tsx which is the cause of the freezing problem
  • https://github.com/reearth/reearth-web/blob/main/.eslintignore#L8
• Add CI task
  • Old repository had the task in CI
  • https://github.com/reearth/reearth-web/blob/main/package.json#L18
  • https://github.com/reearth/reearth-web/blob/main/.github/workflows/ci.yml#L32
• Fix lint-staged setting

What I haven't done

How I tested

Manually run yarn lint and yarn lint-staged in my local.
CI will be displayed in this PR.

Which point I want you to review particularly

Memo

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