merge changes in user sessions and AVID reporting

Adds interaction flow to formally send reports to AVID (reviewing reports and adding additional info); puts print statements behind debug flag

Merge pull request #1 from Christina-A-Pan/hf-refactor

Sets default scaffolding method to 'personal' method; adjusts topic selection with new preds_df columns; removes print and log statements

When the end user clicks "Save Reports," submits all reports to the AVID API

Refreshes overall plot when model is edited. Uses user ID in preds_df. Exports reports and chart to json. Streamlines performance plot and description.

Restructures cached data to be organized by user, then model (to simplify retrieval). Refactors code throughout to support this change.

Adapts labeling and auditing for single-session flow. Removes unused functionality throughout.

Adds automatically generated usernames. Removes username selection and shared user store. Removes Results and Study Links views. Removes AppOld component.

Adds comments on key utils functions; preliminary streamlining of cluster results plot

specify host IP for Flask app

Transfer IndieLabel demo version