[Linux] `read` returns null when keyring is unlocked for the first time after boot

[KRTirtho]

FlutterSecureStorage.read returns null for the first time unlocking the secret-service after system boots.

• If the keyring is already unlocked beforehand, it works fine.
• If I manually lock the keyring and then try to read, it works fine also.

This issue is only occuring in Ubuntu-22.04 or above and Debian-12 or above based Linux distributions

Mine is Ubuntu 23.04

Source code: https://github.com/KRTirtho/spotube/tree/cf7b849cddca3260d9c3a6a064418b0ba2d63270/lib/utils/persisted_state_notifier.dart#L60-L97

[KRTirtho]

Also, in a KDE based environment where KWallet is installed it still uses gnome-keyring instead of kwallet