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

nix/home/neovim/nvim/lua/plugins/smart-splits.lua

@@ -0,0 +1,36 @@
+return {
+  "mrjones2014/smart-splits.nvim",
+  enabled = true,
+  event = "VeryLazy",
+  keys = {
+    { "<leader>wr", "<cmd>SmartResizeMode<cr>", desc = "Toggle Smart Resize Mode" },
+  },
+  config = function()
+    require("smart-splits").setup({
+      ignored_filetypes = {
+        "nofile",
+        "quickfix",
+        "prompt",
+      },
+      ignored_buftypes = { "NvimTree" },
+      default_amount = 3,
+      at_edge = "wrap",
+      move_cursor_same_row = false,
+      resize_mode = {
+        quit_key = "<ESC>",
+        resize_keys = { "h", "j", "k", "l" },
+        silent = false,
+        hooks = {
+          on_enter = nil,
+          on_leave = nil,
+        },
+      },
+      ignored_events = {
+        "BufEnter",
+        "WinEnter",
+      },
+      multiplexer_integration = "tmux",
+      disable_multiplexer_nav_when_zoomed = true,
+    })
+  end,
+}