This is a static helper function for asking the user what they want to
do about unsaved changes. It behaves as a standard Yes/No/Cancel box
with text and buttons tailored to the typical unsaved changes use case.
SPDX License Identifiers are a more compact / standardized
way of representing file license information.
See: https://spdx.dev/resources/use/#identifiers
This was done with the `ambr` search and replace tool.
ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
