Getting similar apps returns empty list

[woutwoot]

Describe the bug
Getting similar apps is broken, it does not return any apps. This also fails in the unit tests with AssertionError: 0 not greater than 0

To Reproduce
Easiest way is to run the unit tests.

Expected behavior
The tests do not fail and similar apps are returned when using the method.

Desktop (please complete the following information):

• OS: macOS 10.14
• Python Version 3.7
• play_scraper Version 0.5.5

[NikolaiSachok]

Looks like Google changed or obfuscated css attributes names the plugin uses to get similar apps details from html response.

I created a pull request with the fix.