Query communication overlay (Frontend)

- Creates the overlay after the user clicks the Notangles button on Circles, which allows users to select for the following term to extract their upcoming course data into Notangles
- When the user interacts and before navigation to Notangles, this is where the query calls are planned to be handled

Start by locating the Circles view and the Notangles button flow in the frontend. Trace where the overlay should be created and how navigation to Notangles currently works, then identify the expected query-call boundary. Done should include the overlay interaction and the planned course-data query flow working before navigation.

Written by the indexing model from the issue text.