Temporal inputs are 2px taller than other textual inputs in Chrome

Created by: cvrebert

In Chrome, <input class="form-control">s with a type of datetime-local, date, month, week, or time are 40px tall, but <input type="text" class="form-control"> (and similar) are 38px tall. They ought to all match. Looks like the temporal inputs use Flexbox internally; that's likely a factor.