feat: Best Practices

[doprz]

PR Notes

• Add Vitest + tests for utils
• Add eslint-plugin-simple-import-sort
• Add package.json scripts for Prettier and ESLint
• Add ESLint error for TSEnumDeclaration and refactor existing enums to as const objects
• Add new GitHub workflows for tests, linting, and formatting

ESLint

        "no-restricted-syntax": [
            "error",
            "ForInStatement",
            "LabeledStatement",
            "WithStatement",
            {
                "selector": "TSEnumDeclaration",
                "message": "Don't declare enums",
            },
        ],
        "@typescript-eslint/consistent-type-exports": "error",
        "@typescript-eslint/consistent-type-imports": "error",
        "simple-import-sort/imports": "error",
        "simple-import-sort/exports": "error",