Exact exact match

[hollmmax]

When matching a short string, the exact match can get lost in results.
For example, I use skim to select packages to install on Arch. If the name is extremely short (lf), the wanted result gets lost beneath results which contain the searched string. ^ nor $ were able to narrow the search to what I wanted. I tried ^lf$, which worked in fzf but yielded no results in skim.
This could be solved by giving perfect match priority (like fzf does), or support the combination of ^ and $ operators (like fzf does).