Add version info to Flatpak's .metainfo.xml

Validation

• I have checked the Issues page to see if my problem has already been reported
• I have confirmed that this bug does not occur in the original game running on original Xbox 360 hardware

If you have DLC installed, please specify which ones you have.

• Apotos & Shamar Adventure Pack
• Chun-nan Adventure Pack
• Empire City & Adabat Adventure Pack
• Holoska Adventure Pack
• Mazuri Adventure Pack
• Spagonia Adventure Pack

If you have mods enabled, please specify which ones you have.

No response

If you have codes enabled, please specify which ones you have.

No response

Describe the Bug

Currently the version number isn't shown because the release data is not present in .metainfo.xml

This can be fixed by adding the release info from the AppStream sprecification.

This is the specification: https://www.freedesktop.org/software/appstream/docs/sect-Metadata-Releases.html
It should be enough to have one entry with the version number and release date for all version in reverse chronological order

Steps to Reproduce

1. Run flatpak list
2. Notice how the flatpak has a empty version field
3. Run flatpak info
4. Notice again how there will be not version data
5. Visit KDE Discover or GNOME Software
6. Notice how it has no version info

Expected Behavior

Assuming the release data is set correctly with the release info for 1.0.0, 1.0.1 and 1.0.2 and all newer versions, flatpak CLI tooling would extract the version from the metadata and the version number would also be shown in any Linux frontend app store.

Footage

N/A. Flatpak-specific

System Specifications

Not very relevant. However a Steam Deck OLED using SteamOS was used.

Additional Context

This is specific to the Flatpak integration with the system and is minor, however this will usually let the user know which version is currently installed (whih is not possible right now) or which version will be installed (although I'm not very sure)

Find the repository's Flatpak .metainfo.xml and read the AppStream Metadata Releases specification linked in the issue. Check the existing metadata, then validate with flatpak list and flatpak info and a Linux app-store frontend; done means release entries expose the installed version.