NgToastService/NgToastComponent/NgToastModule/NgToastConfig/NgToastPosition/
NgToastType are renamed to NgxToast*.
Drop @angular/animations and BrowserAnimationsModule - no longer needed, replaced by CSS
transitions.
Drop the fontello CSS import (ngx-toastf/src/assets/fontello/css/all.min.css) - icons are now
inline SVG, bundled with the component.
NgToastConfig is now an interface (not a class) - replace new NgToastConfig({...}) with a
plain object literal.
position values are now string enums (e.g. 'top-right') instead of numeric indexes.
Showing a new toast no longer replaces an existing one - toasts now stack. If you relied on the
old single-toast/duplicate-blocking behavior, close the previous toast explicitly first.
A new generic show(type, message, config?) method is available alongside the four typed
showToastX() methods.