[iOS] Course Access Error Handling Improvements

[moiz994]

Implement Comprehensive Error Handling for Course Access

To improve the user experience and ensure robust functionality, we need to implement comprehensive error handling for course access within the edX mobile app. This will involve detecting and handling various error scenarios that users may encounter when attempting to access their courses, providing clear and actionable feedback, and ensuring the app remains stable and user-friendly.

Error Handling Scenarios

Case 1

Schema Design Figma

Case 2

Schema Design Figma

Case 3

Case 4

Schema Figma Design

Acceptance Criteria

1. Error detection mechanisms are in place for all identified course access scenarios.
2. The app remains stable and responsive during error conditions, with fallback mechanisms in place.
3. Comprehensive testing is conducted, and all scenarios are validated for proper error handling.