more fixes and preview tests updated

ElementX/Sources/Other/Extensions/Observable.swift

@@ -14,25 +14,37 @@ extension Observable {
     ///
     /// - Parameter property: The key path to the property you would like to observe.
     func observe<Value>(_ property: KeyPath<Self, Value>) -> AsyncStream<Value> {
-        AsyncStream { continuation in
-            let isActive = Mutex(true)
-            
-            @Sendable func observe() {
-                let value = withObservationTracking {
-                    self[keyPath: property]
-                } onChange: {
-                    // Handle the update on the next run loop as this is willSet not didSet.
-                    DispatchQueue.main.async {
-                        guard isActive.withLock({ $0 }) else { return }
-                        observe()
+        if #available(iOS 26, *) {
+            let observations = Observations { self[keyPath: property] }
+            return AsyncStream { continuation in
+                let task = Task {
+                    for await value in observations {
+                        continuation.yield(value)
                     }
                 }
-                continuation.yield(value)
+                continuation.onTermination = { _ in task.cancel() }
+            }
+        } else {
+            return AsyncStream { continuation in
+                let isActive = Mutex(true)
+                
+                @Sendable func observe() {
+                    let value = withObservationTracking {
+                        self[keyPath: property]
+                    } onChange: {
+                        // Handle the update on the next run loop as this is willSet not didSet.
+                        DispatchQueue.main.async {
+                            guard isActive.withLock({ $0 }) else { return }
+                            observe()
+                        }
+                    }
+                    continuation.yield(value)
+                }
+                
+                continuation.onTermination = { _ in isActive.withLock { $0 = false } }
+                
+                observe()
             }
-            
-            continuation.onTermination = { _ in isActive.withLock { $0 = false } }
-            
-            observe()
         }
     }
 }