[vscode] API gap: Theia master vs. VS Code 1.66.2

[rschnekenbu]

This bug tracks the differences between current master Theia VS Code API and VS Code 1.66.2:

• [vscode] API gap: Theia master vs. VS Code 1.64.2 #11520
• [vscode] Support DataTransfer #11776
• DocumentFilter.notebookType starting from 1.66.0 (linked to NoteBook implementation - see [vscode] native notebook support #8395)
• [vscode] Support optional property isTransient in TerminalOptions and ExtensionTerminalOptions #11777
• vscode: add support for inlay hints #10978
• [vscode] Support TreeDragAndDropController and optional property TreeViewOptions.dragAndDropController #11778

[rschnekenbu]

DocumentFilter.notebookType has been stubbed with PR #11993.