su226 [1] filed a request to merge ftba-electron [2] into ftb-app-bin [3]: Migrate binary packages `ftba` and `ftba-electron` to `ftb-app-bin` to follow guideline. Also, I've properly made source package `ftb-app` to use system Electron and `ftba-electron` is less useful now.

Packages that use prebuilt deliverables, when the sources are available, must use the -bin suffix.

[1] https://aur.archlinux.org/account/su226/ [2] https://aur.archlinux.org/pkgbase/ftba-electron/ [3] https://aur.archlinux.org/pkgbase/ftb-app-bin/