closes#11849
The Logo component’s fallback URL was pointing to
`/icons/android/android-launchericon-192-192.png`, but the asset lives
under `/images/icons/....`. This updates defaultPrimaryLogoUrl to use
the correct `/images/icons/android/android-launchericon-192-192.png`
path, restoring the default logo display when no primaryLogo prop is
provided.