Allow CSS fuzzy abbreviation search

[richarddewit]

According to official docs:

CSS module uses fuzzy search to find unknown abbreviations, e.g. ov:h == ov-h == ovh == oh.

However this doesn't seem to be "enabled" in this mode:

When I type ov:h I do get overflow: hidden; on expand, but when I type ovh I get ovh: ;
Same goes for pos:r and posr for position: relative; and all the other abbreviations containing a colon.