to hedge against the (rather unlikely) case where we get another ExtJS
update, as then it might happen that the dev updating the repo to that
overlooks (or doesn't remembers) that the Georgian (ka) language got
contributed manually, not shipped by ExtJS, and delete it by mistake.
Check for all available languages, not just the one exposed in
widget-toolkit, to be future-proof (e.g., we could start using more)
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
