.jar filename does not match Github release

[lerxcl]

No details provided.

The file name on github is "CS2103T-T12-3.PlaNus.jar" instead of "planus.jar", which may be misleading to user wanting to find the exact file name

[nus-pe-bot]

Team's Response

It is a typo.

Items for the Tester to Verify

❓ Issue severity

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

• I disagree

Reason for disagreement: [replace this with your explanation]

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