timetable allows for module clashes

[NeoMinWei]

Timetable does not check if module clashes with each other

[nus-pe-bot]

Team's Response

It is possible for lessons to clash. For example, alternating week modules, or different timings as a result of makeup lessons. We give that flexibility so that users can add clashing lessons as they wish and beyond using the app, attend half of each lesson or skip as they wish.

Items for the Tester to Verify

:question: Issue response

Team chose [response.Rejected]

• [ ] I disagree

Reason for disagreement: [replace this with your explanation]

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