Typo in result exception message

[joytqt-1202]

Description

Deleting a tag that does not exist results in a message output that indicates which tag index provided is invalid.
There is a typo of "$1" in front of the type of tag

Steps to Reproduce

Using sample data,

1. delete-t 1 r/2

Expected Result

"The tag index provided is invalid"

Actual Result

Other information

Nice work on the UG, btw! very descriptive, informative and has sufficient imagery for the user to understand the content required