feat: Update docs for adjacent traces (#15532)

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## DESCRIBE YOUR PR
The way of previous & next traces are shown has changed in the UI (see:
getsentry/sentry#102472)

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Author: JPeer264

docs/concepts/key-terms/tracing/img/trace-view-links.png

@@ -57,7 +57,7 @@ By default, the waterfall view shows a list of transactions. If you need more gr
 
 As users interact with an application, they generate multiple traces. For example, when a user loads a page in their browser and then navigates to another page, this creates two separate traces: one for the initial pageload and another for the subsequent navigation. By default, Sentry will link the traces together.
 
-If linked traces are available, you will see "Previous" or "Next" buttons below the waterfall view. These buttons allow you to navigate between traces that occurred before or after the current one.
+If linked traces are available, you will see "Previous" or "Next" buttons next to the search bar and "Open in Explore" button, near the top of the trace view. These buttons allow you to navigate between traces that occurred before or after the current one.
 
 ![Previous and next trace links](./img/trace-view-links.png)