🏷️ Convert to ES Modules and NodeNext

[NatoBoram]

Motivation

https://www.typescriptlang.org/tsconfig/#verbatimModuleSyntax

When using verbatimModuleSyntax in a consuming app, compilation fails because Jira.js is a CommonJS library in TypeScript. This can be fixed with disableSourceOfProjectReferenceRedirect, but it's a bit of a shame to lose access to the source code when you have it right there. A better option would be to migrate the library to modern JavaScript standards and improve performance and compatibility along the way.

Changes

• Use https://github.com/bennycode/ts2esm to convert the project to ES Modules
•  Use https://github.com/ian-craig/ts-autofix to implement verbatimModuleSyntax
• Migrate from ava to vitest

[MrRefactoring]

Hey @NatoBoram!

I really appreciate your PR; migrating to ESM is important. I also noticed that you plan to transition from ava to vitest, which is something I also wanted to do but haven't found the time for.

A couple of words about the migration: can we use a bundling tool like Rollup to compile the existing code to ESM while also keeping CommonJS for users who are not using modules?

[NatoBoram]

Thanks! I'm not familiar with Rollup, but I'll see what I can do.

[NatoBoram]

Got approval from my employer, I'm moving this PR to their repos. Sorry for the duplicate.

• Superseded by 🏷️ Convert to ES Modules and NodeNext #314