chore: organize ui shit in its own folder

lua/config/plugins/ui/whichkey.lua

@@ -0,0 +1,25 @@
+local M = {
+  "folke/which-key.nvim",
+  event = "VeryLazy",
+  init = function()
+    vim.o.timeout = true
+    vim.o.timeoutlen = 500
+  end,
+}
+
+M.config = function()
+  require("which-key").setup({
+    win = {
+      border = "single",
+    },
+    plugins = {
+      marks = true,
+      registers = true,
+      spelling = {
+        enabled = false,
+      },
+    },
+  })
+end
+
+return M