Fixed label position top & bottom were not working in SelectControl.

[nirbhay18]

Description

labelPosition prop was not working in SelectControl due to CSS not being rendered.

To fix this issue I have added ${ rootLabelPositionStyles } to BaseLabel Styled Component in components/src/input-control/styles/input-control-styles.js.

How has this been tested?

1. Create a custom block with the SelectControl component.
2. Supply labelPostion prop with value bottom.
3. You'll notice that the label position remains unchanged.

Screenshots

Before

After

Types of changes

Bug fix

Checklist:

• My code is tested.
• My code follows the WordPress code style.
• My code follows the accessibility standards.
• My code has proper inline documentation.
• I've included developer documentation if appropriate.
• I've updated all React Native files affected by any refactorings/renamings in this PR.

[nirbhay18]

The issue is persistent in the latest version of WordPress 5.5.1 running without Gutenberg Plugin but it seems to be fixed in the latest version of Gutenberg. Hence, it seems that the fix will be rolled out soon in the core version of WordPress too.