IOS: Tabbar Translucent broken with no actionbar (content falls behind the tabbar)

Environment

• CLI: 5.2.2
• Cross-platform modules: 5.2.2
• Android Runtime: 5.2.1
• iOS Runtime: 5.2.0
• Plugin(s): N/A

Describe the bug
Different layouts fall behind the tabbar with the actionbar hidden. (Page.actionbarHidden)
I have a feeling the change that was made with: https://github.com/NativeScript/NativeScript/issues/6891 has to do something with it.

To Reproduce
Please check the home component of how its set-up. Once build, just start it up and scroll all the way down in the scrollview, you will see that the scrollview falls behind the tabbar.

Please do test it on different devices (with and without safearea's) and different IOS versions.

Expected behavior
setting the tabbar translucent to falls should work for any kind of setup (with actionbar/flat or no Actionbar at all.) it should work with and without safearea as well.

Sample project
I could not recreate this issue with playground as i Needed the platform-declarations in dev dependencies.
tabviewtest.zip

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