docs: 📝 fix doc of labelAlign in Form.Item (#19606)

components/form/index.en-US.md

@@ -38,7 +38,7 @@ A form consists of one or more form fields whose type includes input, textarea,
 | --- | --- | --- | --- | --- |
 | form | Decorated by `Form.create()` will be automatically set `this.props.form` property | object | n/a |  |
 | hideRequiredMark | Hide required mark of all form items | Boolean | false |  |
-| labelAlign | Label text align | 'left' \| 'right' | 'right' | 3.15.0 |
+| labelAlign | text align of label of all items | 'left' \| 'right' | 'right' | 3.15.0 |
 | labelCol | (Added in 3.14.0. Previous version can only set on FormItem.) The layout of label. You can set `span` `offset` to something like `{span: 3, offset: 12}` or `sm: {span: 3, offset: 12}` same as with `<Col>` | [object](https://ant.design/components/grid/#Col) |  | 3.14.0 |
 | layout | Define form layout | 'horizontal'\|'vertical'\|'inline' | 'horizontal' |  |
 | onSubmit | Defines a function will be called if form data validation is successful. | Function(e:Event) |  |  |
@@ -201,6 +201,7 @@ Note: if Form.Item has multiple children that had been decorated by `getFieldDec
 | htmlFor | Set sub label `htmlFor`. | string |  | 3.17.0 |
 | label | Label text | string\|ReactNode |  |  |
 | labelCol | The layout of label. You can set `span` `offset` to something like `{span: 3, offset: 12}` or `sm: {span: 3, offset: 12}` same as with `<Col>`. You can set on Form one time after 3.14.0. Will take FormItem's prop when both set with Form. | [object](https://ant.design/components/grid/#Col) |  |  |
+| labelAlign | text align of label | 'left' \| 'right' | 'right' | 3.15.0 |
 | required | Whether provided or not, it will be generated by the validation rule. | boolean | false |  |
 | validateStatus | The validation status. If not provided, it will be generated by validation rule. options: 'success' 'warning' 'error' 'validating' | string |  |  |
 | wrapperCol | The layout for input controls, same as `labelCol`. You can set on Form one time after 3.14.0. Will take FormItem's prop when both set with Form. | [object](https://ant.design/components/grid/#Col) |  |  |

components/form/index.zh-CN.md

@@ -203,6 +203,7 @@ validateFields(['field1', 'field2'], options, (errors, values) => {
 | htmlFor | 设置子元素 label `htmlFor` 属性 | string |  | 3.17.0 |
 | label | label 标签的文本 | string\|ReactNode |  |  |
 | labelCol | label 标签布局，同 `<Col>` 组件，设置 `span` `offset` 值，如 `{span: 3, offset: 12}` 或 `sm: {span: 3, offset: 12}`。在 3.14.0 之后，你可以通过 Form 的 labelCol 进行统一设置。当和 Form 同时设置时，以 FormItem 为准。 | [object](https://ant.design/components/grid/#Col) |  |  |
+| labelAlign | 标签文本对齐方式 | 'left' \| 'right' | 'right' | 3.15.0 |
 | required | 是否必填，如不设置，则会根据校验规则自动生成 | boolean | false |  |
 | validateStatus | 校验状态，如不设置，则会根据校验规则自动生成，可选：'success' 'warning' 'error' 'validating' | string |  |  |
 | wrapperCol | 需要为输入控件设置布局样式时，使用该属性，用法同 labelCol。在 3.14.0 之后，你可以通过 Form 的 wrapperCol 进行统一设置。当和 Form 同时设置时，以 FormItem 为准。 | [object](https://ant.design/components/grid/#Col) |  |  |