Get Emmet tag completion (type 'div' hit TAB) working in JSX files

keybindings.json

  {
    "keys": ["tab"], "command": "expand_abbreviation_by_tab", "context": [
        {
            "operand": "source.js",
            "operator": "equal",
            "match_all": true,
            "key": "selector"
        },
        {
            "key": "selection_empty",
            "operator": "equal",
            "operand": true,
            "match_all": true
        }
    ]
  }