Art J

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Fix a few typos in PHPDoc comments

3

### Description (*) Fix a few typos in PHPDoc comments: ``` \Magento\ConfigurableProduct\Block\Product\View\Type::_getAdditionalConfig() \Magento\ConfigurableProduct\Block\Adminhtml\Product\Composite\Fieldset\Configurable::_getAdditionalConfig() ``` ### Contribution checklist (*) - [x] Pull request has a meaningful description of its purpose -...

Fix #866: Add element existence check to prevent Page Builder editor crashes

1

### Description We encountered a scenario where missing HTML elements in Page Builder led to runtime errors due to direct calls to `setAttribute`. To address this, we added an existence...