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

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

@@ -0,0 +1,19 @@
+-- Lf file manager for Neovim
+-- https://github.com/lmburns/lf.nvim
+return {
+  "lmburns/lf.nvim",
+  cmd = "Lf",
+  dependencies = {
+    "nvim-lua/plenary.nvim",
+    "akinsho/toggleterm.nvim",
+  },
+  keys = {
+    { "<leader>fl", "<cmd>Lf<cr>", desc = "Lf File Manager" },
+  },
+  opts = {
+    winblend = 0,
+    highlights = { NormalFloat = { guibg = "NONE" } },
+    border = "curved",
+    escape_quit = true,
+  },
+}