Implement more features

[Trumeet]

Is your feature request related to a problem? Please describe.
A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
N/A

Describe the solution you'd like
A clear and concise description of what you want to happen.
To implement more features provided by MiPush, such as topic subscription, alias, etc.

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.
Same as the description.

Additional context
Add any other context or screenshots about the feature request here.
N/A

[Trumeet]

Topic subscription is finished 🙌

[Trumeet]

Apply time settings are finished 😆

[Trumeet]

Alias and account name settings are finished 💯

[Trumeet]

Clearing notifications is finished 👍