feat: Update sidebar ordering for key JavaScript SDK features

- Move Logs to sidebar_order: 2 (add 'new' badge)
- Move Metrics to sidebar_order: 3 (add 'beta' badge)
- Move Session Replay to sidebar_order: 4
- Move Tracing to sidebar_order: 5 (add section separator)

This reorders the navigation to prioritize newer features (Logs, Metrics)
higher in the sidebar for better discoverability.

Author: codyde

docs/platforms/javascript/common/logs/index.mdx

@@ -2,7 +2,8 @@
 title: Set Up Logs
 sidebar_title: Logs
 description: "Structured logs allow you to send, view and query logs sent from your applications within Sentry."
-sidebar_order: 5755
+sidebar_order: 2
+new: true
 notSupported:
   - javascript.deno
   - javascript.cordova

docs/platforms/javascript/common/metrics/index.mdx

@@ -2,7 +2,8 @@
 title: Set Up Metrics
 sidebar_title: Metrics
 description: "Metrics allow you to send, view and query counters, gauges and measurements from your Sentry-configured apps to track application health and drill down into related traces, logs, and errors."
-sidebar_order: 5755
+sidebar_order: 3
+beta: true
 ---
 
 With Sentry Metrics, you can send counters, gauges, distributions, and sets from your applications to Sentry. Once in Sentry, these metrics can be viewed alongside relevant errors, and searched using their individual attributes.

docs/platforms/javascript/common/session-replay/index.mdx

@@ -1,7 +1,7 @@
 ---
 title: Set Up Session Replay
 sidebar_title: Session Replay
-sidebar_order: 5500
+sidebar_order: 4
 notSupported:
   - javascript.cordova
   - javascript.wasm

docs/platforms/javascript/common/tracing/index.mdx

@@ -2,7 +2,8 @@
 title: Set Up Tracing
 sidebar_title: Tracing
 description: "Learn how to enable tracing in your app."
-sidebar_order: 4000
+sidebar_order: 5
+section_end_divider: true
 ---
 
 With [tracing](/product/insights/overview/), Sentry automatically tracks your software performance across your application services, measuring metrics like throughput and latency, and displaying the impact of errors across multiple systems.