nvim: Default to wrapping in fzf-lua preview

By default we wrap the contents.

This will slightly worsen some coding previews, but greatly improve the
default preview for text files.
We will see if it makes sense to keep over time but this makes more
sense to me right now -- especially with zk.nvim using fzf-lua as
preview provider.

nvim/.config/nvim/lua/plugins/pickers.lua

@@ -101,6 +101,11 @@ return { -- file/item pickers and managers
 					},
 				},
 			},
+			winopts = {
+			    preview = {
+			        wrap = true
+			    }
+			},
 			defaults = {
 				jump1 = false,
 			},