[Feature] Only underline quick open targets when quick-open is enabled.

[joeperri95]

One of the regexes used to match quick open targets will also match certain expressions in rust, C++ and I imagine any other languages that make use of the double colon notation.

This can sometimes cause a significant portion of my screen to be underlined when using guake to view or edit code with a terminal application.

It would be nice if the underlining was disabled when the quick-open setting is not set to True.