feat(nix): nix and back again

I tried Nix, but it had too many downsides so I removed it.

1. Didn't like that all files are immutable and simple config changes
need a complete rebuild.
2. Setting up a new Mac didn't work as smoothly as promised. Not worth
the effort.
3. It sucked a lot to always have to type in the password twice on each
darwin-rebuild
4. It solves problems I never had.

.config/nvim/lazyvim.json

@@ -0,0 +1,15 @@
+{
+  "extras": [
+    "lazyvim.plugins.extras.coding.copilot",
+    "lazyvim.plugins.extras.dap.core",
+    "lazyvim.plugins.extras.editor.aerial",
+    "lazyvim.plugins.extras.formatting.prettier",
+    "lazyvim.plugins.extras.lang.go",
+    "lazyvim.plugins.extras.lang.tailwind",
+    "lazyvim.plugins.extras.lang.yaml"
+  ],
+  "news": {
+    "NEWS.md": "6520"
+  },
+  "version": 6
+}