Flagged Out-of-Date Comment: indicator-sound-switcher

MarsSeed flagged indicator-sound-switcher out-of-date on 2024-05-03 (UTC) for the following reason:

Need to change from legacy dependency 'libappindicator-gtk3' to 'libayatana-appindicator'; also revert a commit that introduced a regression: https://github.com/yktoo/indicator-sound-switcher/issues/132