ALTAPPS-949: iOS make code editor an active input

[ivan-magda]

YouTrack Issues:
#ALTAPPS-949

Checklist

Before Code Review:

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

Description

1. Updates appearance of the code-related problems (code, SQL, pycharm)
2. The code editor now an active input with auto-growing behavior on text changes
3. Removes limits UI
4. Logs missing analytic events

[ivan-magda]

@XanderZhu here I removed problems limits state, updated strings, and added analytic events

[vladkash]

For me it's better to use name StepQuizFullScreenCodeEditorClickedInputOutputInfoHyperskillAnalyticEvent to match event's target