Fix line wrapping inside 'if' blocks

[ony3000]

// Input
function Foo() {
  let elem;
  if (true) {
    elem = (
      <div className="lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere eu volutpat id neque pellentesque">
        content
      </div>
    );
  }
  return elem;
}

// prettier-plugin-classnames 0.8.0
function Foo() {
  let elem;
  if (true) {
    elem = (
      <div className="lorem ipsum dolor sit amet consectetur adipiscing elit proin ex massa hendrerit eu posuere eu volutpat id neque pellentesque">
        content
      </div>
    );
  }
  return elem;
}

// prettier-plugin-classnames 0.8.1
function Foo() {
  let elem;
  if (true) {
    elem = (
      <div
        className="lorem ipsum dolor sit amet consectetur adipiscing elit proin
          ex massa hendrerit eu posuere eu volutpat id neque pellentesque"
      >
        content
      </div>
    );
  }
  return elem;
}