Fix: Changed Top Loading Bar Direction (#77)

[sudhanshuku01]

Implemented the direction feature for top loading bar as mentioned in issue #77 Changes Made:

• Implemented a new feature to control the direction of the top loading bar, as per the requirements outlined in issue #77.
• Introduced a new prop named rtl to the LoadingBar component.
• When rtl={false}, the loading bar direction will proceed from left to right, adhering to the default behavior.
• If rtl={true}, the loading bar direction will be from right to left, satisfying the requested functionality.
• Enhanced the homepage of the react-to-loading-bar website by integrating a button labeled "Change Direction".
• Made minor adjustments to the CSS file to ensure responsiveness across various screen sizes.
• Uses Example <LoadingBar rtl={true} // default is false color={barColor} progress={progress} onLoaderFinished={() => setProgress(0)} />

[sudhanshuku01]

Hello @klendi I would like to request to please checkout this PR. I have successfully added a props in the LoadingBar which is rtl={false} or rtl={true} and also update the homepage. If any further changes required I'll do.