Improve TypeScript Compatibility

[eggsy]

Hey!

Great library, I love how it handles the placement and all, it's shame using the autoTable(doc, { ... }) doesn't return the finalY anyhow. It's easy to use applyPlugin it's not really great to see all those TypeScript errors we get. I searched the docs and issues and seems like nobody yet has found a solution yet, so here I am posting my 100% TypeScript solution:

1. Create a declaration file somewhere (for my Vue + Vite project, I got a shims.d.ts file already).
2. Put the following code in it:

import type { Table, UserOptions } from 'jspdf-autotable'

declare module 'jspdf' {
  interface jsPDF {
    lastAutoTable: Table
    autoTable: (options: UserOptions) => void
  }
}

3. Make sure to include it in your tsconfig.json file's include field.

And voila 🎉, you got your types ready!

[eggsy]

This could be implemented directly into the library so other users won't experience the same problem 💪. I will see what I can do when I have free time!

[mmghv]

In v4 we will remove doc.autoTable({ ... }) in favor of autoTable(doc, { ... }) which will return Table with finalY property and other table info.

[eggsy]

Good to know! Thanks 🙏