Compose Navigation - spans not linking to navigation created transaction

### Integration

sentry-android

### Build System

Gradle

### AGP Version

8.3.2

### Proguard

Enabled

### Version

7.16.0

### Steps to Reproduce

Was chatting to support and asked to add info here. ([#137117]())

App is is setup using the following

**Plugins**

```
id("io.sentry.android.gradle") version "4.13.0"
id("io.sentry.kotlin.compiler.gradle") version "4.13.0"
```

**Libraries**

```
sentry-base = "io.sentry:sentry-android:7.16.0"
sentry-compose = "io.sentry:sentry-compose-android:7.16.0"
```

When clicking around the app we eventually see relevant navigation transactions (as a result of the sentry plugin hooking into the navigation)
However all the spans are grouped inside the main activity transaction.

Main Activity Transaction


Navigation Transaction


### Expected Result

For all related spans to be correctly grouped under each navigation transaction

### Actual Result

See steps to reproduce.
Spans are being grouped under main activity transaction.