Fix types for npm packages

[irshadahmad21]

Fixes #1793 #1770

This PR:

• Changes the build tool from ESBuild to Tsup
• Ensures that correct types are produced on build
• Fixes the exports in package.json for all the TS packages

Using the arethetypeswrong CLI, here are the before and after results

BEFORE	AFTER
@inertiajs/core
@inertiajs/react
@inertiajs/vue2
@inertiajs/vue3

Next steps

• Update typescript and @types/react* to the latest version
• Get rid of a few // @ts-expect-error comments

[irshadahmad21]

It's getting difficult to work with Inertia with broken types. Lots of TS errors and broken auto-completions on modern TS stack.

Can we please have a look at this and ship it as soon as we can?

CC: @reinink @claudiodekker @jessarcher

[irshadahmad21]

Had to rebase to resolve conflicts in lockfile

[irshadahmad21]

@reinink @claudiodekker @jessarcher

Is there any possibility of this landing anytime soon?

If not, then is it fine to create a fork and publish to npm to temporarily solve the problem for our team(s)?

[jrson83]

@irshadahmad21 could you please contact me on the inertia discord jrson83 or by mail just@jrson.me.

[irshadahmad21]

For keeping this hanging for 2 months and from Inertia Discord discussions, it seems like the issue is not even acknowledged and this tooling update is rather considered a "major rewrite" which is "highly unlikely" to land. Thus we are no longer interested in this.

[reinink]

@irshadahmad21 Hey definitely not trying to ignore, we've actually been busy lately trying to get on top of issues (thanks a bunch to @driesvints for all his help here), and we've actually talked about this PR internally. This project has a lot of moving parts and so we need to be careful when making changes, plus I work on this project in my free time, so things often take months, not weeks or days. Honestly doing my best 😕

I also don't know much about tsup, but I am familiar with ESBuild, so making this change required me to do some homework first before changing a key part of our tooling.