init of advanced application now allows to specify answer for overwriting files  via init --overwrite=n

Fixes #1965: `Controller::findLayoutFile()` returns incorrect file path when layout name starts with a slash

Fixes #1937: Fixed wrong behavior or advanced app's `init --env` when called without parameter actually specified

Fixed missing translation

Fixes #1894: The path aliases `@webroot` and `@web` are now available right after the application is initialized

Adapted from Portuguese Brazilian translation.