feat(mat-tab): ability to set mat-tab height to grow to fill available area within mat-tab-group

### Feature Description

Currently, the best solution I've found is to override:

`::ng-deep .mat-mdc-tab-body-wrapper { flex-grow: 1; }`

See this [reproduction](https://stackblitz.com/edit/1kawpj?file=src%2Fexample%2Ftab-group-basic-example.html,src%2Fexample%2Ftab-group-basic-example.scss).

If `flex-grow: 1` was added to the body wrapper or an API option provided that allowed that behaviour without using `::ng-deep`, that would be great. Thanks.

### Use Case

Situations where I want a tab group to occupy the full height available and have its contents expand to the available height. E.g. a table or text editing component inside a tab that is scrollable but should occupy as much of the height available as possible.

Inizia dalla riproduzione StackBlitz collegata, in particolare da src/example/tab-group-basic-example.html e src/example/tab-group-basic-example.scss, e analizza come mat-tab-group dispone il proprio body. Confronta il workaround ::ng-deep flex-grow esistente con il comportamento richiesto; il lavoro è completato quando un gruppo di schede può occupare tutta l’altezza disponibile e il suo contenuto può espandersi senza quell’override.

Scritto dal modello di indicizzazione a partire dal testo della issue.