init: enable the disk limiter before the disk block cache
init: enable the disk limiter before the disk block cache

Since `DiskBlockCache.Status()` depends on the disk limiter existing.

keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client