EXOGTN-1785: [Platform-UI] XSS vulnerability in UIForm

Fix description:
- Encode form option
EXOGTN-1761 [Edit Page Layout] Add tab container button is hidden

Fix description:
* Use the new Add Tab icon.
EXOGTN-1754: [Platform - UI] Custom validator of page node name

Fix description:
	- Update validator in platform-ui
EXOGTN-1786: [Platform-UI] XSS vulnerability in UIFormTabPane

Fix description:
- Check if Tab name exists before rendering it