feat: add dataset summary modal on file upload

feat: UX and design improvements across the app

feat: user-supplied API keys, model selector, and Anthropic support

condense query functions

enhance llm understanding of query.csv

refactor example question generator

refactor chat functions

fixes for graphql

add secondary query function

use environment variables for api

first version of graphql integration

add fields to file upload

integration mongodb

update accurancy and bugfixes from refactor

first draft of sql integration