Set foldlevelstart to 1

I'd like to use folds more, so I'm going to try setting the default
foldlevel to 1 so that I can see and use them on a more regular basis.

modules/home-manager/cli/neovim/config/lua/opdavies/options.lua

@@ -7,8 +7,7 @@ local settings = {
   breakindent = true,
   expandtab = true,
   exrc = true,
-  foldlevel = 1,
-  foldlevelstart = 99,
+  foldlevelstart = 1,
   foldmethod = "indent",
   formatoptions = "clqjp",
   hidden = false,