[dagit] Use /solids for individual solid views
Use the full /solids page for all individual solids views. The "typeExplorer" links currently don't work (or seem to mean anything) in an individual solid view, and it seems like we may as well show everything when looking at individual solids anyway.
This fixes the typeExplorer links in individual solid views, and makes the virtualized list scroll directly to the selected solid.
Test Plan: View solids for a repository. Click on types, verify that they lead to the correct filtered view.
Reviewers: bengotow, max, prha
Reviewed By: prha
Differential Revision: https://dagster.phacility.com/D5201