Settings editor funnel button: What does @lang do?

[bamurtaugh]

Testing #147935

I tried searching with the @lang option, but I'm not sure what it's actually filtering by. Some of these options don't appear to be language-specific and appear for multiple languages.

As an example, what is the Java-specific aspect of these Files settings?

[ArturoDent]

See https://github.com/microsoft/vscode-docs/blob/vnext/release-notes/v1_67.md#settings-editor-language-filter-indicator

###Settings editor language filter indicator

Settings editor language filters now change the scope widget text to more clearly show which language is being acted on when a language filter is applied. The short video above shows the Markdown language filter being applied to the filtered settings.

For reference, when a language filter is applied, modifying a setting's value will modify the value of that setting for that language only.