Switch to new lazy-based config

Still a bit WIP. Gradually adding back old plugins and config from old config.

lua/config/keymaps.lua

@@ -0,0 +1,8 @@
+-- Keymaps are automatically loaded on the VeryLazy event
+-- Default keymaps that are always set: https://github.com/LazyVim/LazyVim/blob/main/lua/lazyvim/config/keymaps.lua
+-- Add any additional keymaps here
+local Util = require("lazyvim.util")
+
+vim.keymap.set("n", "<leader>H", function()
+  Util.terminal({ "clx" })
+end, { desc = "Toggle clx (console HackerNews) floating terminal" })