Add update PointPerfect keys button in WiFi Config

[nseidle]

We have AP + STA mode active for firmware checking and update, use the same methods to allow user to update PointPerfect keys.

[PaulZC]

This is still TODO... However:

The recent HTTP_Client and ZTP improvements added forceKeyAttempt. This is a global bool which will (re)trigger ZTP and download new keys. forceKeyAttempt can currently only be set true by menuPointPerfect or the Get Keys display / mode button state.

If we make forceKeyAttempt part of settings, we can set it true via the web config page. You don't really want forceKeyAttempt to be saved to SD / LittleFS, but it probably does no harm. It would be cleared during the ZTP anyway.

[PaulZC]

I'm renaming forceKeyAttempt to requestKeyUpdate

[PaulZC]

OK. This is in #403 too. Changes are: 01e3005

[nseidle]

This is in release v1.3.