coc->native-lsp ui fixes

nvim/lua/darcula/utils/globals.lua

@@ -285,7 +285,7 @@ NV_Darcula_Show_Documentation = function()
     return
   end
 
-  vim.lsp.buf.hover()
+  vim.lsp.buf.hover({border = "rounded", max_width = 120})
 end
 
 NV_Darcula_Show_Man_Documentation = function(visual)