Six user-facing strings were written as literals and never reached the string
catalogue, so they rendered as source text on every device whatever the phone
was set to. They are invisible from here: a missing entry falls back to the
key, which is exactly right in the language the key is written in.
The screen a private store shows when nobody is signed in was all of them at
once: its title, both of its subtitles, and the sign in button, which missed
an entry that was already there by one capital letter. The heartbeat's socket
error was the other pair.
Two more had entries and bypassed them by passing a literal where the helper
belonged: the title of the alert a failed signing puts up, and the OK button
on every alert in the app, which is a real word rather than "OK" in four of
the languages this ships. The signing alert also printed
`localizedDescription`, which for an error conforming to no `LocalizedError`
is "The operation couldn't be completed", the sentence `readableDescription`
exists to replace and that every other install path already uses.