feat(nix): migrate Neovim to Nix (as a symlink)

nix/home/neovim/nvim/lua/plugins/abolish.lua

@@ -0,0 +1,9 @@
+-- Automatically fix spelling mistakes
+-- https://github.com/tpope/vim-abolish
+return {
+  "tpope/vim-abolish",
+  config = function()
+    vim.api.nvim_command("Abolish teh the")
+    vim.api.nvim_command("Abolish {despa,sepe}rat{e,es,ed,ing,ely,ion,ions,or}  {despe,sepa}rat{}")
+  end,
+}