qmlfomater improvements

The qmlformat tool removes the curly brackets and adds a semi-colon at the end of function calls.

• The first one is a serious safety issue, is documented as why if/else statements should always have curly brackets.

• The second one is subjective but i don't remember the last time that any mainstream javascript formatter added semi-colons instead of removing them.

Original function:

function getSafe(fn, defaultVal) {
    try {
        return fn()
    } catch (e) {
        if (typeof defaultVal === "undefined") {
            defaultVal = null
        }
        return defaultVal
    }
}

   Formatted function

    function getSafe(fn, defaultVal) {
        try {
            return fn();
        } catch (e) {
            if (typeof defaultVal === "undefined")
                defaultVal = null;
            return defaultVal;
        }
    }

the curly brackets from the if were removed, and a semicolon was added at the end of each expression.