Updated translation for Handbook-alpha and for chapters which are shared between all arch.
Created attachment 101435 [details, diff] handbook-alpha
Created attachment 101436 [details, diff] hb-install-about
Created attachment 101437 [details, diff] hb-install-alpha-medium
Created attachment 101438 [details, diff] hb-install-network
Created attachment 101439 [details, diff] hb-install-alpha-disk
Created attachment 101440 [details, diff] hb-install-stage
Created attachment 101441 [details, diff] hb-install-system
Created attachment 101442 [details, diff] hb-install-alpha-kernel
Created attachment 101443 [details, diff] hb-install-config
Created attachment 101444 [details, diff] hb-install-tools
Created attachment 101445 [details, diff] hb-install-alpha-bootloader
Created attachment 101446 [details, diff] hb-install-finalise
Created attachment 101447 [details, diff] hb-install-next
Applied and updated, I'll commit when all archs are ok. Thank you for the good job!