Normalize date/time input styles (tailwindlabs#14931)

This PR adds some additional styles to Preflight to normalize a bunch of
inconsistencies in date/time inputs across browsers.

The main motivation for this is to remove these insane classes we have
to add in Catalyst:

```html
<input type="date" class="[&::-webkit-datetime-edit-fields-wrapper]:p-0 [&::-webkit-date-and-time-value]:min-h-[1.5em]
[&::-webkit-datetime-edit]:inline-flex [&::-webkit-datetime-edit]:p-0 [&::-webkit-datetime-edit-year-field]:p-0
[&::-webkit-datetime-edit-month-field]:p-0 [&::-webkit-datetime-edit-day-field]:p-0
[&::-webkit-datetime-edit-hour-field]:p-0 [&::-webkit-datetime-edit-minute-field]:p-0
[&::-webkit-datetime-edit-second-field]:p-0 [&::-webkit-datetime-edit-millisecond-field]:p-0
[&::-webkit-datetime-edit-meridiem-field]:p-0"/>
```

With these normalizations, changing things like padding, display type,
etc. gives consistent results (at least as consistent as is actually
possible) across all browsers.

Author: adamwathan

packages/tailwindcss/preflight.css

@@ -244,6 +244,38 @@ progress {
   -webkit-appearance: none;
 }
 
+/*
+  1. Ensure date/time inputs have the same height when empty in iOS Safari.
+  2. Ensure text alignment can be changed on date/time inputs in iOS Safari.
+*/
+::-webkit-date-and-time-value {
+  min-height: 1lh; /* 1 */
+  text-align: inherit; /* 2 */
+}
+
+/*
+  Prevent height from changing on date/time inputs in macOS Safari when the input is set to `display: block`.
+*/
+::-webkit-datetime-edit {
+  display: inline-flex;
+}
+
+/*
+  Remove excess padding from pseudo-elements in date/time inputs to ensure consistent height across browsers.
+*/
+::-webkit-datetime-edit,
+::-webkit-datetime-edit-year-field,
+::-webkit-datetime-edit-month-field,
+::-webkit-datetime-edit-day-field,
+::-webkit-datetime-edit-hour-field,
+::-webkit-datetime-edit-minute-field,
+::-webkit-datetime-edit-second-field,
+::-webkit-datetime-edit-millisecond-field,
+::-webkit-datetime-edit-meridiem-field,
+::-webkit-datetime-edit-fields-wrapper {
+  padding: 0;
+}
+
 /*
   Add the correct display in Chrome and Safari.
 */