fix voiceapp move to background fail

[HoTBAIzZY]

Summary

wake up the speaker after factory reset; this is because the app will become a hometask and cannot be moved to the background. In addition, even if it is moved to the background, it will be started multiple times. This commit changes the assignment logic of hometask and the background application movement logic to fix this problem

Impact

1. The wake-up animation can be started normally
2. Hometask can be assigned correctly
3. The same application will not be started multiple times
4. Optimized some implementations and the logic is clearer

Testing

1. Build and burn the image to the real machine
2. Wake up app after connecting to the Internet successfully and ensure that app can exit normally
3. Click to turn on smart life and continue to wake up, app can appear in the foreground and exit normally

[CLAassistant]

All committers have signed the CLA.

[xiaoxiang781216]

@HoTBAIzZY please fix ci error. and sign CLA.