Revert "fix: remove dashboard startup section (no lazy.nvim)"

This reverts commit 9385589aeb.

plugins/options.nix

@@ -12,13 +12,6 @@
       registers = "unnamedplus";
     };
 
-    luaConfigRC.lazy-stats-shim = lib.nvim.dag.entryAfter ["globalsScript"] ''
-      -- Shim lazy.stats so snacks dashboard doesn't error without lazy.nvim
-      package.loaded["lazy.stats"] = {
-        stats = function() return { startuptime = 0, count = 0, loaded = 0 } end
-      }
-    '';
-
     luaConfigRC.options = lib.nvim.dag.entryAfter ["globalsScript"] ''
       vim.opt.tabstop = 2
       vim.opt.shiftwidth = 2