Qobuz fills missing credits with strings such as "Not Documented",
"Unknown Artist" or "N/A". `qbz_text_utils::names::is_placeholder_name`
recognises them (case-insensitive, hyphen/underscore folded) and the album
document, the track info modal and the album info modal drop those names
from credits, composers, featured lists and the header's artist fallback,
dropping a row entirely when nothing legible is left.
cc
vicrodh
e546e6614e