Move src/ to app/

functions.php

@@ -51,7 +51,7 @@ if (!class_exists('Roots\\Sage\\Container')) {
  * Add or remove files to the array as needed. Supports child theme overrides.
  */
 array_map(function ($file) use ($sage_error) {
-    $file = "src/{$file}.php";
+    $file = "app/{$file}.php";
     if (!locate_template($file, true, true)) {
         $sage_error(sprintf(__('Error locating <code>%s</code> for inclusion.', 'sage'), $file), 'File not found');
     }