* feat(#1814): added cursorline config to DEFAULT_OPTS
Extends #1814
Currently, the config cursorline is set to `true` by default.
This behaviour can only be changed by a hacky way of listening to an event, as @alex-courtis mentioned that: "The user can change this default if they want via event".
This PR generalizes the configuration to be easier to config via the function `setup()`.
* doc: add cursorline
Co-authored-by: Alexander Courtis <alex@courtis.org>
9ad93b6ac0