Jetpack interstitial not translated on login

[dd32]

When the login screen is used in a non-en_US locale, the login screen is translated, however, if Jetpack isn't sure about the login being legitimate it'll prompt with a math problem to solve.

That math problem isn't translated. See screenshot.

[dd32]

Note: I'm assuming this is caused by the local selector on login not working for not-login pages, or not loading the Jetpack translation files, I'm making the assumption that these strings are translated in Jetpack.

[dd32]

In 10982:

Locale Switcher: Run earlier during WordPress bootstrap to ensure that the locale is switched prior to any other plugins executing code.

This ensures that it runs prior to Jetpack Protect which short circuits the request, and as a result can translate that page.

Fixes #5732.