Leverage TM_SELECTED_TEXT

[oiiiiiiii]

I think the snippets could be greatly improved by using the $TM_SELECTED_TEXT functionality more. E.g. by changing the javascript if snippet

    "If Statement": {
        "prefix": "if",
        "body": ["if (${1:condition}) {", "\t$0", "}"],
        "description": "If Statement"
    },

to

    "If Statement": {
        "prefix": "if",
        "body": ["if (${1:condition}) {", "\t${0:$TM_SELECTED_TEXT}", "}"],
        "description": "If Statement"
    },

That way it would be easier to wrap a peace of code with the if expression. Same could be done with for, while, elif, function, etc. snippets.

[oiiiiiiii]

If this is wanted I would also be willing to contribute rewriting some snippets that way