message: fix: duplicate keys in request samples
  fixes
diff: @@ -30,7 +30,7 @@ export class RequestSamples extends React.Component<RequestSamplesProps> {
  <TabList>
  {hasBodySample && <Tab key="payload"> Payload </Tab>}
  {samples.map(sample => (
  - <Tab key={sample.lang}>
  + <Tab key={sample.lang + '_' + (sample.label || '')}>
  {sample.label !== undefined ? sample.label : sample.lang}
  </Tab>
  ))}
  