fix: preserve component props when className.target is false

[jamsch]

Closes #229

Summary of changes

If the mapping for className.target is configured to "false" (like the case of the Button override from RN), the component won't preserve the props.

Details

When importing the Button component from react-native, it loads the following file:

react-native-css/src/components/Button.tsx

Lines 11 to 25 in 008d479

	const mapping: StyledConfiguration<typeof RNButton> = {
	className: {
	target: false,
	nativeStyleMapping: {
	color: "color",
	},
	},
	};
	export const Button = copyComponentProperties(
	RNButton,
	(props: StyledProps<ButtonProps, typeof mapping>) => {
	return useCssElement(RNButton, props, mapping);
	},
	);

Where the target: false mapping is passed through:
-> useCssElement
-> useNativeCss (mapped to config)
-> getStyledProps (state.configs[x])
-> deepMergeConfig
-> else block on if (config.target) { ... }:

https://github.com/nativewind/react-native-css/blob/008d479253365745acedef5a9602a7382f991597/src/native/styles/index.ts#L364C2-L367

which results in empty prop object for the Button if just using like the following:

import { Button } from "react-native";

function MyComponent() {
  return <Button title="foo" />
}

// throws an error: `Invariant Violation: The title prop of a Button must be a string`