appdata: Update screenshots for GNOME 43
Add updated screenshots for GNOME 43, hosted on static.gnome.org. All people are fake, with avatars generated with thispersondoesnotexist.com.
Related to Initiatives#34
Add updated screenshots for GNOME 43, hosted on static.gnome.org. All people are fake, with avatars generated with thispersondoesnotexist.com.
Related to Initiatives#34