Refactor entity rendering with manager pattern

Introduce ChillEntityRenderManager to centralize entity rendering logic, reducing redundancy and improving code organization. Update dependencies and service configuration to support the new manager pattern, enhancing maintainability and flexibility of entity rendering in templates.

src/Bundle/ChillMainBundle/Templating/Entity/ChillEntityRenderInterface.php

@@ -15,7 +15,7 @@ namespace Chill\MainBundle\Templating\Entity;
  * Interface to implement which will render an entity in template on a custom
  * manner.
  *
- * @template T
+ * @template T of object
  */
 interface ChillEntityRenderInterface
 {
@@ -31,7 +31,7 @@ interface ChillEntityRenderInterface
      * </span>
      * ```
      *
-     * @param T $entity
+     * @param T|null $entity
      *
      * @phpstan-pure
      */
@@ -42,7 +42,7 @@ interface ChillEntityRenderInterface
      *
      * Example: returning the name of a person.
      *
-     * @param T $entity
+     * @param T|null $entity
      *
      * @phpstan-pure
      */