Identifies references to translations that don't exist.
The following examples contain code snippets that either fail or pass this check.
Auto-correctionAnchor link to section titled "Auto-correction"
Theme Check can correct this error using the
--auto-correct flag. When the flag is specified, Theme Check adds the translation as
"TODO" to the default locale file.
Disabling this checkAnchor link to section titled "Disabling this check"
Disabling this check isn't recommended.