Limit dimensions on embeddings

[CornHusker89]

just a new idea for optimization

see https://openai.com/blog/new-embedding-models-and-api-updates for more info

[smallketchup82]

ok now that im back to galaxygpt work. i dont think this is very necessary. this is useful for corps with a gigantic amount of data, but we're only really tracking like 800 pages in an sqlite database

i think we'll be fine without this