Case sensitive hangman category selection

[LWachtel1]

Hangman category selection is case-sensitive; it does not recognise categories spelt with capital letters.

[nus-pe-script]

Team's Response

It is unlikely to occur if the user follows the user guide which states the accepted inputs thus should be of low severity

Items for the Tester to Verify

:question: Issue severity

Team chose [severity.Low] Originally [severity.Medium]

• [ ] I disagree

Reason for disagreement: [replace this with your explanation]

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