Fix space-members access type to be set upon creation

[denasescu]

Pull Request Checklist

• I read the contributing guide
• UI change has been tested on both light and dark themes, in portrait and landscape orientations and on iPhone and iPad simulators
• Accessibility has been taken into account.

• Pull request is based on the develop branch

• Pull request contains a changelog file in ./changelog.d
• You've made a self review of your PR
• Pull request includes screenshots or videos of UI changes
• Pull request includes a sign off

[denasescu]

Steps to reproduce:

• Open any space and choose Create a subspace.
• Select Private, then enter any space name on the next screen.
• When prompted for access, choose Me and teammates.
• Select Next until subspace is created.
• Go to Space Settings and inspect Access row. Notice that Private is set instead of Space members as it was set upon creation.

[vpetrykov]

@SBiOSoftWhare / @ismailgulek / @giomfo could you please look into this?

[CLAassistant]

All committers have signed the CLA.