I'd like to migrate over to using "textgen" to mean text-generation APIs
in general, so I've renamed the /textgenerationwebui/* endpoints to
/backends/text-completions/*.
Instead of "version" and "koboldVersion", have "koboldUnitedVersion" and
"koboldCppVersion", the latter of which is null if we're not connected
to KoboldCpp.
Generate(), being async, now returns a promise-within-a-promise.
If called with `let p = await Generate(...)`, it'll wait for generation
to *start*. If you then `await p`, you'll wait for generation to
*finish*. This makes it much easier to tell exactly when generation's
done. generateGroupWrapper has been similarly modified.
I searched for all users of tokenizers.API, but missed that the menu
converts the numerical select values directly to enum values. I've used
the special tokenizer value 98 to represent "the tokenizer API for
whichever backend we're currently using".
Sorting with a random comparator doesn't actually shuffle an array.
Depending on the sorting algorithm used, there will be a bias to the
shuffle (see https://bost.ocks.org/mike/shuffle/compare.html).
If you open that link in Firefox, the bias will be especially bad.
Instead of implementing "random" character sort using a random sort
comparator, use the shuffle function instead.
This means we don't have to pass the "padding" parameter into every
function so they can add the padding themselves--we can do it in just
one place instead.
Store the URLs for each tokenizer's action in one place at the top of
the file, instead of in a bunch of switch-cases. The URLs for the
textgen and Kobold APIs don't change and hence don't need to be
function arguments.
