Add arcade and images

Author: Alex Krawiec

docs/product/explore/index.mdx

@@ -8,4 +8,4 @@ The Explore tab in Sentry offers multiple ways to search and investigate your ap
 
 ## Learn More
 
-<PageGrid exclude={['metrics']} />
+<PageGrid />

docs/product/explore/metrics/img/aggregates.png

@@ -12,6 +12,8 @@ description: "Send counters, gauges, and distributions from your code to track a
 
 With Sentry Metrics, you can send [counters](#counters), [gauges](#gauges), and [distributions](#distributions) from your code to track application health signals like `email.sent`, `checkout.failed`, or `queue.depth`. What makes Sentry's Metrics unique is that every metric event is **trace-connected**, meaning you can click directly into the related traces, logs, and errors when something looks off.
 
+<Arcade src="https://demo.arcade.software/wNDJOXTJw64xiuVi7Hp6?embed" />
+
 Unlike traditional metrics tools that only show _if_ something's changed, Sentry's trace-connected metrics let you understand _why_ it changed. When a `checkout.failed` counter spikes, you can click into a sample and see the exact trace, spans, logs, and errors that produced that metric event.
 
 Not everything in your application generates an error or requires full tracing. Metrics are perfect for tracking:
@@ -62,6 +64,8 @@ The Metrics Explorer provides two main views:
 
 ### Aggregates View
 
+![Metrics Aggregates View Screenshot](./img/aggregates.png)
+
 The Aggregates tab shows trends and totals across any attributes you've added to your metrics. You can:
 
 - View time-series charts showing metric trends
@@ -73,6 +77,8 @@ Use this view to spot trends, identify anomalies, and understand aggregate behav
 
 ### Samples View
 
+![Samples View Screenshot](./img/samples.png)
+
 The Samples tab shows individual metric events with **direct links to their traces**. This is where trace-connected metrics shine:
 
 - See each individual metric event as it occurred