feat(config): add `no-import-type-side-effects` rule of `@typescript-eslint`

[shinGangan]

Describe the feature

Currently, @typescript-eslint/consistent-type-imports is set as the typescript-eslint rule.

• https://github.com/nuxt/eslint/blob/135207841829cba98c85c63ef788514ff7b39805/packages/eslint-config/src/flat/configs/typescript.ts#L64-L67

Since fixStyle is not specified, I think fixStyle: separate-type-imports will be applied.

I would like to suggest enabling @typescript-eslint/no-import-type-side-effects along with fixStyle: separate-type-imports being applied. By adding this rule, it is possible to suppress variations in separate-type-imports and inline-type-imports on the user side.

However, I think whether to add a rule that disallows inline types to the official ESLint rules is an issue that requires discussion.

Additional information

• [X] Would you be willing to help implement this feature?
• [ ] Could this feature be implemented as a module?

Final checks

• [X] Read the contribution guide.
• [X] Check existing discussions and issues.

[shinGangan]

Hi @antfu , I would appreciate it if you could comment when you have time. 🙏