fix: add missing appdata informations

[0pendev]

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• [X] I've read the guidelines for contributing to this repository
• [X] I made sure to follow the project's coding style
• [X] I've updated the documentation with the relevant information (if needed)

Detailed description

The appdata informations were update for the 2.4.0 release but not for 2.4.1. It also fixes a typo in the date for the 2.4.0 release.

Test plan (required)

Closing issues

[wargio]

@karliss