hook_theme_suggestions_alter(array &$suggestions, array $variables, $hook)
Alters named suggestions for all theme hooks.
This hook is invoked for all theme hooks, if you are targeting a specific theme hook it's best to use hook_theme_suggestions_HOOK_alter().
The call order is as follows: all existing suggestion alter functions are called for module A, then all for module B, etc., followed by all for any base theme(s), and finally for the active theme. The order is determined by system weig