Type-definitions for Trans-component do not allow array as i18nKey

[therealtbs]

🐛 Bug Report

The TypeScript definitions for the Trans-component don't allow you to specify an array of i18nKeys.

To Reproduce

codesandbox

This (undocumented, for the Trans-component at least, for the t-function see here) feature already works well with the only problem being the type-definitions.

t(["key1", "fallbackKey"]) // works and gives no TypeScript errors

  <Trans
    i18nKey={["key1", "fallbackKey"]}
//  ^ Type error: Type 'string[]' is not assignable to type 'string'.
  /> // works otherwise

Expected behavior

The type-definitions for the t-function allow this. Since the Trans-component uses the t-function in order to resolve the message, I would expect to be able to supply fallback keys as if I was using the t-function directly.

t(["key1", "fallbackKey"]) // works and gives no TypeScript errors

  <Trans
    i18nKey={["key1", "fallbackKey"]}
  /> // works and gives no TypeScript errors

Your Environment

• runtime version: Chrome 89, doesn't matter
• i18next version: i18next@19.9.2, react-i18next@11.8.10
• os: Windows, Linux
• typescript version: 4.2.3

[pedrodurek]

Hey @therealtbs, it should be fixed now!