This PR was merged into the 4.3 branch.Discussion----------Add missing row_attr option to FormType| Q             | A| ------------- | ---| Branch?       | 4.3| Bug fix?      | yes| New feature?  | no| Deprecations? | no| Tickets       |Fix:#33682 - related issue#33573| License       | MITThe#33573 modified Symfony's form themes. But the [FormType](https://github.com/symfony/form/blob/master/Extension/Core/Type/FormType.php) don't allow the option `row_attr` so the OptionResolver throw an exception that the option is unknown.This PR basically add the option and give it to the form view (like `label_attr` do)Commits-------d711ea2 Add missing row_attr option to FormType

This PR was merged into the 4.3 branch.Discussion----------[TwigBridge] Add row_attr to all form themes| Q             | A| ------------- | ---| Branch?       | 4.3| Bug fix?      | yes| New feature?  | no| Deprecations? | no| Tickets       |Fix#33552| License       | MIT| Doc PR        | -The rules I applied:- Always done on the first HTML tag of the row.- Current existing row attrs (`class` or `style`) are applied unless they are defined by the `row_attr` override. They can be removed if they are explicitly set to `false`.Starting from:```<div>```With `row_attr: {foo: "bar"}`:```<div foo="bar">```With `row_attr: {class: "ccc"}`:```<div>```With `row_attr: {foo: "bar", class: false}`:```<div foo="bar">```Commits-------dfdcbb4 [TwigBridge] Add row_attr to all form themes