Port to FormCard

The following project need to be ported to FormCard. Technical details https://carlschwan.eu/1/01/01/kirigami-addons-0.11.0/#mobileform-is-now-formcard-0110

TODO

• Kasts
• Keysmith (taken by quasar.emission)
• Merkuro
• Okular (taken by @shivodayt )

WIP

• Neochat network/neochat!1129 (closed)
• Arianna graphics/arianna!35 (closed)

DONE

• Tokodon (taken by @carlschwan)
• Kirigami Addons AboutPage !135 (merged)