The matrixmedia modules were using the `libraries.matrix.ui.media` package
(shared with the matrixui module) and `libraries.matrix.ui.media.*`
namespaces. Use `libraries.matrixmedia.api`, `libraries.matrixmedia.impl`
and `libraries.matrixmedia.test` instead, matching the module paths.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>