Optimize style for Device.qml
Summary | 概述:
Create the displayNameLabel optionally, so that the deviceIdLabel can be centred while the displayNameLabel is empty;
Make the size of the trust-level's icon same with the label, make visual style balanced;
Add spacing between trust-level's label and the action button, make visual style balanced.
Type | 类型: add
Test Plan | 测试计划:
Seeing the deviceIdLabel vertical centered when displayNameLabel is empty;
Seeing the trust-level icon having the same height with the label beside;
Seeing some space between trust-level label and settings button, they will not stick together anymore.