Wrong tracking activity when switch from window app to browser app

[phucvinh57]

Reproduce steps:

• Open a window. Window log session will be opened.
• Switch to browser app without any tab changes or entering new URLs.
• Because window watcher ignore browser app, and there's no new event from browser watcher -> window log session does not close, new session on browser won't be created -> Wrong tracking.

Propose solution:

• When window watcher get a new metric, check if it belongs to a browser app. If yes, request to browser extension to get current browser tab, then browser extension will send back current browser tab information again.