fix(cli): remove invalid "none" platform

[EvanBacon]

Why

• fix regression introduced in [expo-cli] Add platform when running --dev-client #19319
  • none is passed to the bundler and implies the existence of .none.js files, and Platform.select({ none: '...' }) which isn't valid.
  • The default in classic and all other implementations of the metro dev server has been to fallback on ios.
  • The most correct variation would be to fallback on web as the web is a non-standard React Native client which doesn't implement the expo manifest format. However, (metro) web isn't enabled in every project, and if it were then the JSON manifest would be skipped in favor of the HTML file.
• remove unneeded logs about offline and anonymous.
• add force-manifest-type options to help prompt.

How

Test Plan

Checklist

• Documentation is up to date to reflect these changes (eg: https://docs.expo.dev and README.md).
• Conforms with the Documentation Writing Style Guide
• This diff will work correctly for npx expo prebuild & EAS Build (eg: updated a module plugin).