fix: reflect correctly the translation key in Timestamp component

docusaurus/docs/React/guides/date-time-formatting.mdx

@@ -152,16 +152,6 @@ Now we can apply custom configuration in all the translation JSON files. It coul
 }
 ```
 
-Besides overriding the formatting parameters above, we can customize the translation key via `timestampTranslationKey` prop in all of the above mentioned components (`DateSeparator`, `EventComponent`, `MessageTimestamp`).
-
-```tsx
-import { MessageTimestampProps, MessageTimestamp } from 'stream-chat-react';
-
-const CustomMessageTimestamp = (props: MessageTimestampProps) => (
-  <MessageTimestamp {...props} timestampTranslationKey='customTimestampTranslationKey' />
-);
-```
-
 ##### Understanding the formatting syntax
 
 Once the default prop values are nullified, we override the default formatting rules in the JSON translation value. We can take a look at an example of German translation for SystemMessage:

src/components/Message/Timestamp.tsx

@@ -37,7 +37,7 @@ export function Timestamp(props: TimestampProps) {
         messageCreatedAt: normalizedTimestamp,
         t,
         tDateTimeParser,
-        timestampTranslationKey: 'timestamp/Timestamp',
+        timestampTranslationKey: 'timestamp/MessageTimestamp',
       }),
     [calendar, calendarFormats, format, formatDate, normalizedTimestamp, t, tDateTimeParser],
   );