Switch from SwiftGen to String catalog

[igorkulman]

This PR

• removes SwiftGen as build plugin
• removes Swiftgen generated strings files
• removes strings files and replaces them with a string catalog
• removes no longer needed script to check for missing translations

[igorkulman]

	1 Warning
:warning:	This PR seems bigger than it should be!

	1 Message
:book:	This PR changes Danger configuration

Generated by :no_entry_sign: Danger