Hide invisible tabs content (by setting their height to 0)

[SiSa68]

There is empty space on bottom of tab's scene, if other tabs height is larger than current tab

Motivation

Fix #290 In this PR I hide other tabs content (by setting their contents height to 0) to resolve this problem

Test plan

• Add 3 tabs with different content height
• Switch between tabs
• Each tabs height is same as its contents height