Add guide: Typescript

[JonasKruckenberg]

TODO

Add a document to getting-started explaining how to set up typescript with Tauri, what the benefits are, and explain a few recommended settings.

Details

• what (short explainer, link to docs)
• why (security, DX)

Recommended compiler options

    "target": "ES2021",
    "module": "ESNext",
    "moduleResolution": "Node",
    "strict": true,
    "isolatedModules": true,
    "forceConsistentCasingInFileNames": true,

[chippers]

I am semi-interested in the TypeScript guide stuff, not sure if I have enough knowledge to really fully fill it out. I am curious about the target in the OP being ES2021, isn't Tauri mostly 2017+ regarding system versions?

[JonasKruckenberg]

We did a few tests a while ago, I don't remember the details but we determined ES2021 is fine for user code, but tauri libs and plugins have to target ES2019(?) because of webpack 4.

[simonhyll]

Not sure where to cover this 🤔 But regardless will track it for 2.0 as information we want covered one way or another.