potential fix for the rare mapbox native crash (use onDestroyView)

app/build.gradle

@@ -156,7 +156,7 @@ dependencies {
     implementation 'com.github.mik3y:usb-serial-for-android:v3.0.0'
 
     // mapbox
-    implementation 'com.mapbox.mapboxsdk:mapbox-android-sdk:9.5.0'
+    implementation 'com.mapbox.mapboxsdk:mapbox-android-sdk:9.6.0'
 
     // mapbox specifies a really old version of okhttp3 which causes lots of API warnings.  trying a newer version
     implementation 'com.squareup.okhttp3:okhttp:4.9.0'

app/proguard-rules.pro

@@ -30,6 +30,10 @@
 -keep class com.geeksville.mesh.**{*;}
 -keepclassmembers class * extends com.google.protobuf.GeneratedMessageLite { <fields>; }
 
+# Recommended by mapbox to prevent native crashes
+-dontwarn com.mapbox.**
+-keep class com.mapbox.** { *; }
+
 # for kotlinx.serialization
 -keepattributes *Annotation*, InnerClasses
 -dontnote kotlinx.serialization.SerializationKt

app/src/main/java/com/geeksville/mesh/ui/MapFragment.kt

@@ -204,9 +204,9 @@ class MapFragment : ScreenFragment("Map"), Logging {
         mapView?.onResume()
     }
 
-    override fun onDestroy() {
+    override fun onDestroyView() {
         mapView?.onDestroy()
-        super.onDestroy()
+        super.onDestroyView()
     }
 
     override fun onSaveInstanceState(outState: Bundle) {