MetaInfo interface does not contain titleChunk key

[vintprox]

titleChunk is not augmented by default in MetaInfo interface. That easily confuses TypeScript developer, trying to retrieve original title of current page, be it in changed callback or direct $meta().refresh() - TypeScript will complain that titleChunk doesn't exist, for good.

[vintprox]

Manually augmenting interface saves the day:

declare module 'vue-meta' {
  export interface MetaInfo {
    titleChunk?: string
  }
}

But that would be most convenient to see implemented in vue-meta

[pimlie]

@vintprox If you already know/have the fix, please feel free to submit a PR for it :)

[stale]

Thanks for your contribution to vue-meta! This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. If you would like this issue to remain open:

1. Verify that you can still reproduce the issue in the latest version of vue-meta
2. Comment the steps to reproduce it
   Issues that are labeled as pending will not be automatically marked as stale.

[vintprox]

Should be solved with #559