Fix react-native-material-palette metadata: remove unmaintained flag and ios platform#2263

Simek merged 4 commits intomainreact-native-community/directory:mainfrom

copilot/remove-unmaintained-flag-react-native-material-palreact-native-community/directory:copilot/remove-unmaintained-flag-react-native-material-palCopy head branch name to clipboard