feature: add support for indexing documents using pagefind, and pushing to s3

[cdxker]

Please indicate what issue this PR is related to and @ any maintainers who are relevant

[cdxker]

Instructions for running locally

Creating pagefind index

Set env's for pagefind

S3_ENDPOINT_PAGEFIND=https://pagefind-index-west.s3.us-west-1.amazonaws.com
S3_ACCESS_KEY_PAGEFIND=********************
S3_SECRET_KEY_PAGEFIND=**********************************************
S3_BUCKET_PAGEFIND=pagfind-index-west
AWS_REGION_PAGEFIND=us-west-1

cargo run --bin pagefind-worker

cargo run

let body = {
}
httppost $"($url)/api/dataset/pagefind" $body

After the index is created, it should be accessible under https://pagefind-testing-index.trieve.ai/pagfind-index-west/pagefind/

Using pagefind index for search componetn

Set env's under clients/search-component/example/.env

VITE_USE_GROUP_SEARCH="false"
VITE_USE_PAGEFIND="true"
VITE_PAGEFIND_URL="https://pagefind-testing-index.trieve.ai/pagfind-index-west/pagefind"

Run component locally under docsearch mode and search