[Typescript] add type definitions

[championswimmer]

What problem does this feature solve?

stops typescript from complaining of absent type declarations

What does the proposed API look like?

A very simple

declare module '@vue/devtools' {
  const connect(host: string, port: string): void
}

will do. only required so that we can do

import devtools from '@vue/devtools'
devtools.connect()

[karanisverma]

Hey @Akryum can I pick this up?

[Akryum]

Of course! :)

[karanisverma]

Thanks @Akryum, Looking into this

[championswimmer]

I think both host and port are optional, so my given example is not 100% correct.
So it should be host?: string, port?: string in the arguments

[karanisverma]

Hi @Akryum I have created a PR please have a look, @championswimmer this is 1st time around when i am creating type definition. Please let me know if I have done some mistake. Thanks in advance :)