[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): add `run:ios` command (#16662)

* [wip] Added expo run:ios command

* Clean up run:ios

* feat(cli): add headless server mode

* fix(cli): fix run:ios logic issues

* Update CHANGE

feat(cli): add `run:ios` command (#16662)

* [wip] Added expo run:ios command

* Clean up run:ios

* feat(cli): add headless server mode

* fix(cli): fix run:ios logic issues

* Update CHANGELOG.md

* Update packages/expo/CHANGELOG.md

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

* clean up

* refine fixture

* refactor and test code signing

* Update resolveOptionsAsync.ts

* fix merge

* added new impl

* Update AppleDevice.ts

* Added more tests

* fixed e2e tests

* lint fix

* Update index-test.ts

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

show more ...

feat(cli): add `run:android` command (#17187)

* feat(cli): add `run:android` command

* added partial e2e test

* fix platforms showing up in terminal ui

* fix launching by link

* Update p

feat(cli): add `run:android` command (#17187)

* feat(cli): add `run:android` command

* added partial e2e test

* fix platforms showing up in terminal ui

* fix launching by link

* Update packages/@expo/cli/CHANGELOG.md

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

* fix platforms showing up in terminal ui

fix launching by link

fixup tests

Delete resolveArgs-test.ts.snap

* revert changes

* Update index-test.ts

Update WebpackBundlerDevServer.ts

Update WebpackBundlerDevServer.ts

Update WebpackBundlerDevServer.ts

Update PlatformManager.ts

* Update index-test.ts

* update structure

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

show more ...