Enable ESLint rule unicorn/no-array-for-each, auto-fix all violations, manually address new issues for ~4% time reduction measured via profile-fixture.mjs on Apple Silicon M1.

lib/md036.js

@@ -49,8 +49,8 @@ module.exports = {
       return base;
     }
     let state = base;
-    params.tokens.forEach(function forToken(token) {
+    for (const token of params.tokens) {
       state = state(token);
-    });
+    }
   }
 };