Selection and hlsearch are same colour

[injust]

When using micro's hlsearch setting and finding text that occurs frequently, the cursor essentially disappears, as the current selection has the same colour as all the other occurrences.

See micro-editor/micro#3804 for asciicasts.

[ninetailedtori]

I'll push a PR for this one as well :]

[ninetailedtori]

Ignoring the spam of referencing, #21.