Adding missing back handler

Author: TimoPtr

app/src/main/kotlin/io/homeassistant/companion/android/settings/ConnectionSecurityLevelFragment.kt

@@ -5,6 +5,7 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import androidx.activity.OnBackPressedCallback
 import androidx.compose.foundation.layout.WindowInsets
 import androidx.compose.foundation.layout.WindowInsetsSides
 import androidx.compose.foundation.layout.consumeWindowInsets
@@ -78,6 +79,18 @@ class ConnectionSecurityLevelFragment private constructor() : Fragment() {
         },
     )
 
+    private val backPressedCallback = object : OnBackPressedCallback(true) {
+        override fun handleOnBackPressed() {
+            setFragmentResult(RESULT_KEY, Bundle())
+            parentFragmentManager.popBackStack()
+        }
+    }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        requireActivity().onBackPressedDispatcher.addCallback(this, backPressedCallback)
+    }
+
     @SuppressLint("UnusedMaterial3ScaffoldPaddingParameter")
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View {
         return ComposeView(requireContext()).apply {