using 100vh: screen gets cut off on mobile and tablets

### Issue type

* [ ] bug report
* [ x] feature request

### Issue description

**Current behavior:**
On mobile browsers and tablet browsers, screen gets cut off due to Nebular is using 100vh to establish height.

On mobile and tablets, 100vh refers to outer height which is not as intended.

**Expected behavior:**
See whole screen of our APPs on mobiles and tablets.

**Steps to reproduce:**
Use a sidebar with a footer and try to see that footer on a mobile/tablet screen.

### Other information:

Using Angular 14.0.2 and Nebular 9.0.3