feat: support window resizing on iPad out-of-the-box

[artus9033]

Summary:

The motivation for this PR is for any app generated with the RN Community CLI using this template to include support for window resizing (by dragging the bottom-right corner) on iPads out-of-the-box. One example voice for such feature from the community can be found in facebook/react-native#54105.

There are 2 changes required to bring support for window resizing on iPad:

• list iPad as a supported destination in project.pbxproj for the app not to run in compatibility mode
• list all 4 supported orientations so as to enable resizing of the window to arbitrary size on iPad

Changelog:

[IOS] [ADDED] - List iPhone and iPad as supported targets in project.pbxproj, support all 4 orientations on iPad in Info.plist to enable window resizing on iPad

Test Plan:

Test locally with npx @react-native-community/cli@latest init AwesomeProject --template=file:/path/to/template

Result before: unable to resize, as shown in facebook/react-native#54105
Result after: ability to resize to minimum size (same as e.g. the system calendar app):