Scroll the file list independently so view selection, refresh, creation actions and directory navigation remain visible. Keep the selected Files entry available in projects without Git.
Add component coverage and 16 Electron layout scenarios for themes, window sizes and scroll retention. Focused tests, typecheck and lint passed; the full test run timed out after 200 seconds.
Release note: Workspace file controls remain visible while scrolling, and projects without Git retain the Files entry.
