Refactor ESLint configs to use @stylistic plugin

[YuriiHoliuk]

Summary

• Refactored ESLint configuration to use @stylistic/eslint-plugin for formatting rules
• Extracted formatting rules into separate rules.js files for better maintainability
• Added @Stylistic plugin dependency to both internal and react-internal configs
• Updated package versions to 1.4.0
• Maintained existing rule behavior while improving code organization

Test plan

• Verify ESLint still works correctly with existing projects
• Confirm all formatting rules are properly applied
• Test both internal and react-internal configurations
• Run linting on sample projects to ensure no regressions

🤖 Generated with Claude Code

[marina-tilniak]

why do we need it? would be good to add it to pr description

[YuriiHoliuk]

why do we need it? would be good to add it to pr description

@marina-tilniak It would be clear in the case of the right timing. It's used in api, frontend, mobile for months, I just realized, I have uncommitted changes locally, when needed to publish mate-scripts for our external mentors :harold:
That's part of the thing I did with formatter and migrated back to pure ESLint, but with more styling rules.

[marina-tilniak]

why do we need it? would be good to add it to pr description

@marina-tilniak It would be clear in the case of the right timing. It's used in api, frontend, mobile for months, I just realized, I have uncommitted changes locally, when needed to publish mate-scripts for our external mentors :harold: That's part of the thing I did with formatter and migrated back to pure ESLint, but with more styling rules.

I see, bur I mean why do we need Stylistic plugin?

[YuriiHoliuk]

why do we need it? would be good to add it to pr description

@marina-tilniak It would be clear in the case of the right timing. It's used in api, frontend, mobile for months, I just realized, I have uncommitted changes locally, when needed to publish mate-scripts for our external mentors :harold: That's part of the thing I did with formatter and migrated back to pure ESLint, but with more styling rules.

I see, bur I mean why do we need Stylistic plugin?

Styling rules in eslint are deprecated in prior of this plugin. And it contains more rules to autofix formatting to the desired state, to be closer to formatters.