We should build out the text-splitting and chunking strategy to be more configurable per workspace. This should be delineated as an advanced setting since in general most should not need to change it. For those who understand the implications should be allowed to modify it.

More on splitters

It would make sense for the UI to have a way to set file extensions => splitter settings with a way to select a document to "preview" how a document would be split in real-time.