ALTAPPS-1340: Shared, iOS code blanks if statement

[ivan-magda]

YouTrack Issues:
#ALTAPPS-1340

Checklist

Before Code Review:

• Fields "Assignees, Labels, Milestone" are filled in the pull request;
• New analytics events are documented;
• All checks have been passed;
• Changes have been checked locally.

Description

• Adds if statement support in shared
• Renders if statement support on iOS

[XanderZhu]

@ivan-magda
I suggest to split these methods of the StepQuizCodeBlanksReducer, they are too much long.

• handleDeleteButtonClicked
• handleSpaceButtonClicked
• handleSuggestionClicked
  Also, I suggest to not just suppressing Detekt issues like LongMethod, NestedBlockDepth & CyclomaticComplexMethod, but trying to resolve these issues.