Create space flow (#4957)

* create space flow implementation

# Conflicts:
#	ElementX/Sources/FlowCoordinators/SpacesTabFlowCoordinator.swift

* create space flow fully implemented and working

* updated tests and updated the create room camera button UI

* updated the avatar button in the create room screen, and added power level overrides for spaces

* update power level content overrides to behave just as EW, and removed ask to join when creating a space regardless of the FF

* updated UI tests snapshots

* invite for a public space should always be forced to 50

* pr suggestions + PL override fix

* fix a missed code change

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