ruff

3cb2e677 - `ruff.applyFormat` now formats an entire notebook document (#11493)

`ruff.applyFormat` now formats an entire notebook document (#11493) ## Summary Previously, `ruff.applyFormat`, seen in VS Code as the command `Ruff: Format Document`, would only format the currently active notebook cell inside a notebook document. This PR makes `ruff.applyFormat` format the entire notebook document at once, operating on each code cell in order. ## Test Plan 1. Open a notebook document that has multiple unformatted code cells. 2. Run `Ruff: Format Document` through the Command Palette (`Ctrl/Cmd+Shift+P` by default) 3. Observe that all code cells in the notebook have been formatted.