[cli][packages] unify the default dev server port to 8081 (#22880)

# Why

for historical reasons, when running `npx expo start` the dev-server listens to port 19000, and running `npx expo start --

[cli][packages] unify the default dev server port to 8081 (#22880)

# Why

for historical reasons, when running `npx expo start` the dev-server listens to port 19000, and running `npx expo start --dev-client` it listens to port 8081. since we are now on our effort to deprecate `--dev-client` option, it is better to unify the listening port.
close ENG-8936

# How

- update packages/**/*.ts for port 19000 -> 8081
- search more occurrences for 19000 to 8081

# Test Plan

- ci passed
- bare-expo
- unversioned expo go + ncl

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feat(cli): improve ios multi-scheme resolution (#21240)

# Why

- Building app clips onto a native device will fail because the protocol
appears to be unimplemented natively on-device.
- When an

feat(cli): improve ios multi-scheme resolution (#21240)

# Why

- Building app clips onto a native device will fail because the protocol
appears to be unimplemented natively on-device.
- When an iOS project has multiple schemes, the default scheme should be
the first application scheme if available. This prevents the addition of
something like App Clips from breaking the default behavior.

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Co-authored-by: Expo Bot <[email protected]>

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