Fixed orientation change on BrowserActivity

Author: MistralMireille

app/src/main/AndroidManifest.xml

@@ -32,7 +32,7 @@
  <data android:scheme="file" android:host="*" android:pathPattern=".*\\.mht" android:mimeType="*/*" />
  </intent-filter>
  </activity>
- <activity android:name=".BrowserActivity">
+ <activity android:name=".BrowserActivity" android:configChanges="orientation|screenSize|keyboardHidden">
  <intent-filter>
  <action android:name="android.intent.action.SEND"/>
  <category android:name="android.intent.category.DEFAULT"/>