* appdata: Improve appdata for AppStream 1.0
- Add the `<developer><name>` tag
- Mark the `<developer_name>` tag as deprecated
- Improve appstreamcli parameters
- Activate meson tests on Flatpak manifest
* Change developer ID to kramo.hu
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Co-authored-by: kramo <93832451+kra-mo@users.noreply.github.com>
* appdata: use appstreamcli for appdata validation
appstream-util is obsoleted by appstreamcli.
* appdata: Update appdata
- Add translation tag
- Add categories and keywords tags
* Capitalize keywords to avoid duplicate strings
* Remove catrgories and keywords
They are unnecessary for Flathub
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Co-authored-by: kramo <contact@kramo.hu>
