fix(options): mark winhighlight as list style (#19477)

Also add missing fcs, lcs and winhighlight to list of key-value options for `vim.opt`.

Co-authored-by: ii14 <ii14@users.noreply.github.com>

test/functional/api/vim_spec.lua

@@ -2732,8 +2732,8 @@ describe('API', function()
 
     it('should have information about window options', function()
       eq({
-        allows_duplicates = true,
-        commalist = false;
+        allows_duplicates = false,
+        commalist = true;
         default = "";
         flaglist = false;
         global_local = false;