The Scripture reference whose verse is to be adjusted.
The number of verses to offset the current verse by. Positive values move forward, negative values move backward.
A new Scripture reference with the adjusted verse. The verse number is clamped to stay
within valid bounds for the chapter. For books-present-aware stepping that rolls across
chapter/book boundaries (Paratext 9 style), see the get*Ref navigation functions in
platform-bible-react/experimental.
Adjusts the verse of a Scripture reference by a specified offset.