VSCode and typescript still do not understand assignments to window as
introducing of a global name. To make them happy, use assignment to
globalThis.

This reverts commit 8129a1db.

2. Replace PCAgeImplantAdjust widgets with just calling applyAgeImplant and applyAgeImplantOlder on the PC object
3. Switch applyAgeImplant over to a smooth curve instead of a stepwise function, so you don't get twice as much benefit from waiting 'til your slave is exactly 36 instead of 35 to facelift her
4. Remove old (no longer used) GenSkinTone widget

This reverts commit 3044a9c5

Convert farmyard to use healthPenalty instead of .tired and .health.condition.
Apply health penalty to Head Girl effectiveness.