Further restructuring.

lua/plugins/none-ls.lua

@@ -0,0 +1,14 @@
+return {
+  'nvimtools/none-ls.nvim',
+  config = function()
+    local null_ls = require 'null-ls'
+    null_ls.setup {
+      sources = {
+        null_ls.builtins.formatting.stylua,
+        null_ls.builtins.diagnostics.eslint,
+        null_ls.builtins.completion.spell,
+      },
+    }
+    vim.keymap.set('n', '<leader>cf', vim.lsp.buf.format, { desc = '[C]ode [f]ormatting' })
+  end,
+}