CSS code hint does not allow selection via the keyboard

[dangoor]

This is a regression introduced in 546e9cd

I have not tried this on Windows, but this happens consistently for me on the Mac and is fixed if I go back to 0bd49aa (one revision back)

to reproduce:

1. open citrus completed/css/desktop.css
2. put the cursor in a rule and make a new line
3. press "d". "direction" and "display" are shown. Neither one is highlighted
4. type "is". Only "display" is shown. Still not highlighted
5. press enter. The previous line is left showing "dis" and a new line is created indented further

It should have replaced "dis" with "display:".

[dangoor]

I have a pull request up for this, but I have not assigned this issue to myself because I will not likely be able to make additional changes this afternoon should any be required.