Test: options to filter outputs and metadata

[rebornix]

Refs: #118933

• anyOS @egamma
• anyOS @sbatten

Complexity: 3

Create Issue

---

We added options to support filtering out metadata and outputs in the diff editor. notebook.diff.ignoreMetadata controls the visibility of metadata, and notebook.diff.ignoreOutputs controls the visibility of outputs.

Besides, you can also use actions in the diff editor toolbar context menu to toggle the options

Testers:

• Test if the settings are respected after window reload
• Test if settings take effect after being modified (through settings update or the actions)
• Outputs are rendered properly after multiple toggling.