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.

Start with the linked StackBlitz reproduction, especially src/example/tab-group-basic-example.html and src/example/tab-group-basic-example.scss, and inspect how the mat-tab-group lays out its body. Compare the existing ::ng-deep flex-grow workaround with the requested behavior; done means a tab group can fill the available height and its contents can expand without that override.

Written by the indexing model from the issue text.