nvim: split plugins into multiple files

.config/nvim/lua/plugins/tidy.lua

@@ -0,0 +1,9 @@
+return {
+  -- clean up white spaces and empty lines before writing
+  {
+    "mcauley-penney/tidy.nvim",
+    opts = {
+      filetype_exclude = {}
+    }
+  }
+}