Move stuff to request classes for #339

app/Repositories/RuleGroup/RuleGroupRepositoryInterface.php

@@ -42,6 +42,13 @@ interface RuleGroupRepositoryInterface
      */
     public function destroy(RuleGroup $ruleGroup, RuleGroup $moveTo = null): bool;
 
+    /**
+     * @param int $ruleGroupId
+     *
+     * @return RuleGroup
+     */
+    public function find(int $ruleGroupId): RuleGroup;
+
     /**
      * @return Collection
      */