chore(build): set stencil extras config (#21877)
chore(build): set stencil extras config (#21877)

Stencil 2 will update the extras defaults to not include many of the polyfills and shims by default. Setting the configs here ensures they stay enabled so there isn't a breaking change for Ionic v5 users.
driftyco/ionic,driftyco/ionic,driftyco/ionic,driftyco/ionic,driftyco/ionic