Allow CSS targeting on text

[fucata55]

I have a use case to make the selected value in single selection to use ellipses when text overflowed. However, it's impossible to do that without ended up hiding the X button because the text is targeted with the . Wrapping {{item.text}} with allows it to be targeted by css Despite my best effort to style it, the X button can't show in 1 line when text overflow happened

[jtotht]

This has already been done in #304, this PR can be closed.