feat: checking receptor data

Fix 758 connectivity source does not have a data

Chore dataset ref space

bugfix: remove rate limiting for get req

chore: remove julich brain unused versions

to preseve bkwd compat

Bugfix UI issues

added gdpr embargo to ibc dataset

bugfix: not fetching ieeg data

Chore regional feature minor fixes

bugfix: restore modality filter functionality

chore: dataset fetching (filter out maps, reenable ibc datasets)

feat: adding additional features to region side nav

chore: reenable ibc datasets

feat: add open kg link in rg side panel
feat: add pin dataset to rg side panel

chore: prettify plotly meshes