Update ActiveField::init() to call parent::init()

[SOHELAHMED7]

Fix https://github.com/yiisoft/yii2-gii/issues/529

Q	A
Is bugfix?	✔️
New feature?	❌
Breaks BC?	❌
Fixed issues	https://github.com/yiisoft/yii2-gii/issues/529

[what-the-diff[bot]]

PR Summary

• Added parent initialization to ActiveField.php Ensures proper setup & initialization of the class's inherited properties and methods.