feat(all): form template override

config/config.yml.dist

 IdBookEngine : "b68c6848-b7d9-4083-91f0-3de6f065280e"
+form_template: "elloha/form.html.twig"
 searchable_contenttypes:
     - HCO
     - HLO

src/EllohaExtension.php

@@ -92,7 +92,7 @@ class EllohaExtension extends SimpleExtension
         ];
     }
 
-    /**
+/**
      * @return string
      */
     public function resaForm()
@@ -102,11 +102,16 @@ class EllohaExtension extends SimpleExtension
         $form = $this->getContainer()['form.factory']->createBuilder(ResaType::class, $formData, [
             'resaTypes' => $this->_getResaTypesForOptions(),
         ])->getForm();
-
-        return $this->renderTemplate('@elloha/Frontend/generateForm.html.twig', [
-            'form' => $form->createView()
-        ]);
-
+    
+        try {
+            return $this->renderTemplate($this->getConfig()['form_template'], [
+                'form' => $form->createView() 
+            ]);
+        } catch (\Exception $e) {
+            return $this->renderTemplate('@elloha/Frontend/generateForm.html.twig', [
+                'form' => $form->createView()
+            ]);
+        }
     }
 
     /**