minimal changes to get camera intent working for Android 10 users

This is only a temporary workaround for Android 10 users:
- Enable permission request to write to external storage for Android 10
- Enable old behaviour prior Android 10 for external storage

app/src/main/AndroidManifest.xml

@@ -4,11 +4,12 @@
 
     <uses-permission
         android:name="android.permission.WRITE_EXTERNAL_STORAGE"
-        android:maxSdkVersion="28"/>
+        android:maxSdkVersion="29"/>
     <uses-feature
         android:name="android.hardware.camera"
         android:required="false"/>
     <application
+        android:requestLegacyExternalStorage="true"
         android:allowBackup="false"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"

app/src/main/java/om/sstvencoder/MainActivity.java

@@ -191,7 +191,7 @@ public class MainActivity extends AppCompatActivity {
 
     private boolean needsRequestWritePermission() {
         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M ||
-                Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q)
+                Build.VERSION.SDK_INT > Build.VERSION_CODES.Q)
             return false;
         String permission = Manifest.permission.WRITE_EXTERNAL_STORAGE;
         int state = ContextCompat.checkSelfPermission(this, permission);