GM_config Migration

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A recent breaking change in the config library has caused the script to stop working, a migration will need to be made ASAP.

Issue: sizzlemctwizzle/GM_config#113
Migration Wiki: https://github.com/sizzlemctwizzle/GM_config/wiki/Asynchronous-read-and-write-migration

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The library should be temporarily pinned at https://raw.githubusercontent.com/sizzlemctwizzle/GM_config/2207c5c1322ebb56e401f03c2e581719f909762a/gm_config.js until this migration can take place.

EDIT: Temporarily patched, should work on migration ASAP