feat(view): add view.cursorline (#1859)

* 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>

lua/nvim-tree/view.lua

@@ -490,6 +490,7 @@ function M.setup(opts)
   M.View.hide_root_folder = options.hide_root_folder
   M.View.tab = opts.tab
   M.View.preserve_window_proportions = options.preserve_window_proportions
+  M.View.winopts.cursorline = options.cursorline
   M.View.winopts.number = options.number
   M.View.winopts.relativenumber = options.relativenumber
   M.View.winopts.signcolumn = options.signcolumn