chore(gatsby): Migrate query-watcher to ts#27324

Merged

ascorbic merged 4 commits intogatsbyjs:masterfrom ArcaneDiver:ts/query-watcher

Oct 9, 2020

+176-147

Commits on Oct 7, 2020

chore(gatsby): Migrate query-watcher to ts
Michele Della Mea
committed
fix exports and some types
Michele Della Mea
authored

Commits on Oct 8, 2020

modify import from index
Michele Della Mea
authored
optional chaining instead of check if it is undefined
Michele Della Mea
authored