fix: get scheme from xcodeProject name

[szymonrybczak]

Summary:

Fixes #2115
Regression introduced in #2078

Reverts this code that was used in 0.72:

cli/packages/cli-platform-ios/src/commands/runIOS/index.ts

Lines 87 to 92 in 9d486c8

	const inferredSchemeName = path.basename(
	xcodeProject.name,
	path.extname(xcodeProject.name),
	);
	let scheme = args.scheme || inferredSchemeName;

Test Plan:

git clone https://github.com/microsoft/react-native-test-app.git
cd react-native-test-app
npm run set-react-version 0.73 -- --core-only
yarn
cd example
pod install --project-directory=ios

# Link CLI locally following CONTRIBUTING.md
# Because of an issue with finding CocoaPods, you may have to remove line 51
# packages/cli-platform-ios/src/commands/runIOS/index.ts

yarn ios

Checklist

• Documentation is up to date to reflect these changes.
• Follows commit message convention described in CONTRIBUTING.md

[szymonrybczak]

@tido64 Mind looking at these changes? 🙏 I tested this in RNTA, and it seems to be working correctly.

[tido64]

Thanks! I had to disable automatic pod install (which is fixed in #2121), but react-native run-ios passes now. Tested against 0.73.0-rc.2.

I left a few nits.