Notebook editor options not respected when editor options set

[rzhao271]

Testing #205740

1. Add the following User settings

"editor.insertSpaces": true,
"notebook.editorOptionsCustomizations": {
	"editor.insertSpaces": false
}

2. In a Jupyter notebook, create a new Python cell and write Python code with an indented section, such as a for loop or if statement.
3. 🐛 The indent uses spaces rather than tabs.