fix: exposed apis

[Shivam25092001]

FIX (BREAKING CHANGE)

• This PR refactors the apis exposed for react-native widgets integration.
• Proposed api:

customConfig = { backendEndpoint, assetEndpoint, sdkConfigEndpoint, loggingEndpoint }
const configuration = { elementOptions, appearance }

<HyperProvider options={publishableKey, profileId, customConfig}>
     <HyperElements options={sdkAuthorisationForPayments or clientSecret}>
            <PaymentWidget options={configuration} />
     </HyperElements>
</HyperProvider>

• Before:

<HyperProvider publishableKey={publishableKey} profileId={profileId}>
    <PaymentWidget
        widgetId="payment-widget"
        onPaymentResult={(result: any) => {}}
        style={{ width: '100%', height: 400 }}
        options={{ getCustomisationOptions(), clientSecret, sdkAuthorisation }}
    />
</HyperProvider>