This PR fixes some package vulnerabilities that you will see when
running `npm install`. This PR fixes that by bumping dependencies to get
rid of the vulnerabilities.

This PR adds a new `CODEOWNERS` file so that the
`@tailwindlabs/engineering` will be automatically requested for review
when changes are made to the repository.

`boxShadow` accepts multiple shadows just like `dropShadow` does. This
patch fixes the TS typings to reflect that.

See demo showing that multiple shadows are supported (complete with it
incorrectly complaining that the config is bad) here:
https://play.tailwindcss.com/VHqWbbEIrz?file=config

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Co-authored-by: Philipp Spiess <hello@philippspiess.com>

This works around an issue in Chrome where `::selection` does not read
from variables defined on `::selection` thus breaking all uses of color
utilities with the selection variant. e.g. `selection::bg-red-200`.

We now add a fallback value of `1` to all uses of
`var(--tw-bg-opacity)`, `var(--tw-text-opacity)`,
`var(--tw-border-opacity)`, etc… since Chrome treats the variable as if
it did not exist because it's not defined on the parent.

In Chrome 131 (until the change is rolled back) existing utilities like
these will not work:
- `selection:text-opacity-50`
- `selection:[--tw-text-opacity:0.5]`

Fixes #15000

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Co-authored-by: Adam Wathan <adam.wathan@gmail.com>