chore: update todos on readme

chore: change default text gen model

chore: update readme

chore: update readme

fix: character list now updates/downloads at all

refactor: improve __init__.py a bit

chore: change blank image tensor size from 512 to 64

chore: actually remove importlib.util import

chore: suppress ruff warning about unused import and remove importlib.util import

chore: remove todo

refactor: throw error if text gen response is different than expected

chore: remove comment

refactor: create a function for fetching and assigning backend data to widget to make file cleaner and more modular

chore: cleanup imports in venice params node

docs: add and improve tooltips for generate text advanced beta node