applied changes from b3fee5c4d2368d304b653d33e4135469312fa5fb
through fb4435d514398a0b1febebe8bf46339e2c2b52b6

Original commit message:
Change Finch to use Pidgin's clientkey/devid when connecting to ICQ.
For whatever reason the Finch-specific clientkey/devid stopped working.
Whatever.
Fixes #14294