migrate lint stack to Oxlint + Oxfmt

[Simek]

Why

Oxlint + Oxfmt are Rust-based replacement for ESLint + Prettier. They rely on multithreading and offer a significant performance gains, with no local cache needed. They also have support for multiple editors and IDEs via plugins/extensions, so migration for maintainer should also be a smooth process.

How

Migrate lint stact to Oxlint + Oxfmt while trying to retain previous scripts, code organization and ruleset, aiming at 1:1 conversion for now.

To prevent new warnings/errors to pop I had to disable few enabled by default rules, but it might be worth to revisit, and try to fix them in near future. There are definitely more rules which can be enabled to address some potential issues and code styling, the list of all supported ones can be found at https://oxc.rs/docs/guide/usage/linter/rules.html.

Additionally, I would recommend enabling import grouping and sorting (https://oxc.rs/docs/guide/usage/formatter/sorting.html) by the formatter.

Unfortunately, there is one rule which is not currently supported by the toolset, nor have an alternative, and it is no-restricted-syntax rule. Please let me know if this is a blocker for the migration - for now I have left the inline comments associated with that rule, where it was enabled manually. Already enabled noUncheckedSideEffectImports (https://www.typescriptlang.org/tsconfig/#noUncheckedSideEffectImports) TypeScript config option should prevent some issues, but definitely not all of them, which were previously covered by ESLint.

Besides the migration, this changeset includes few formatting changes and warning fixes:

• duplicate imports (looks like the rule was not working correctly in previous setup)
• duplicate commas in arrays (2 cases)
• unneeded self-assignment (1 case)
• non-null assertion with optional chaining (1 case)

Any feedback or suggestions are appreciated!

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