Fix dragging a folder from the explorer tree to terminal no longer copies folder path

[jeanp413]

This PR fixes #128283

This is a regression from #125943 as DataTransfers.RESOURCES are now only used for file resources and folders are filtered out when setting this dataTransfer type:

vscode/src/vs/workbench/browser/dnd.ts

Lines 286 to 289 in a907071

	const files = fileSystemResources.filter(({ isDirectory }) => !isDirectory);
	if (files.length) {
	event.dataTransfer.setData(DataTransfers.RESOURCES, JSON.stringify(files.map(({ resource }) => resource.toString())));
	}

Fortunately, there is CodeDataTransfers.FILES containing files and folders so I'm adding that as a valid dnd type for the terminal

vscode/src/vs/workbench/contrib/files/browser/views/explorerViewer.ts

Lines 938 to 941 in a907071

	const fileResources = items.filter(s => s.resource.scheme === Schemas.file).map(r => r.resource.fsPath);
	if (fileResources.length) {
	originalEvent.dataTransfer.setData(CodeDataTransfers.FILES, JSON.stringify(fileResources));
	}

[meganrogge]

Thank you! Works great 👍🏼