Moved autocomplete source array to where it's used.
Migrated German labels into a data attribute.

Otherwise this becomes an internationalization nightmare.
Added multi-key-fetch to autocomplete suggestions.

I noticed that the average user takes a gazillion years to type in a regexp.
While he does that, the application has plenty of time to sequentially load all
the values, and no latency whatsoever will be noticed.
Inversely, when the pre-filter reverts to _list/tabulate/field-type-value, the
perceived time between pressing <enter> and getting a result seems infinite.
So what I can offer is that the user may as well use the results already
filtered client-sidely, as an extra autocomplete suggestion. It will be
displayed as soon as less than 50 items are suggested, but it hides if there's
only one other item.
Moved label into data attribute 'use-suggestions'.

I am not content with the phrasing yet but I don't know what else to put there.
Refreshed autocomplete suggestions on new data.
WIP: This probably repairs populated viewports.