fix(snackbar): swap enter and exit animation curves

Author: willshowell

src/lib/snack-bar/snack-bar-container.ts

@@ -40,8 +40,8 @@ import {MatSnackBarConfig} from './snack-bar-config';
 
 // TODO(jelbourn): we can't use constants from animation.ts here because you can't use
 // a text interpolation in anything that is analyzed statically with ngc (for AoT compile).
-export const SHOW_ANIMATION = '225ms cubic-bezier(0.4,0.0,1,1)';
-export const HIDE_ANIMATION = '195ms cubic-bezier(0.0,0.0,0.2,1)';
+export const SHOW_ANIMATION = '225ms cubic-bezier(0.0,0.0,0.2,1)';
+export const HIDE_ANIMATION = '195ms cubic-bezier(0.4,0.0,1,1)';
 
 /**
  * Internal component that wraps user-provided snack bar content.
@@ -72,8 +72,7 @@ export const HIDE_ANIMATION = '195ms cubic-bezier(0.0,0.0,0.2,1)';
       state('visible-bottom', style({transform: 'translateY(0%)'})),
       state('hidden-bottom', style({transform: 'translateY(100%)'})),
       transition('visible-bottom => hidden-bottom', animate(HIDE_ANIMATION)),
-      transition('void => visible-bottom',
-        animate(SHOW_ANIMATION)),
+      transition('void => visible-bottom', animate(SHOW_ANIMATION)),
     ])
   ],
 })