Pp 386 add user properties

[mrkulik]

1. Mixpanel user properties added:

   - entry_point
   - gini_client_id
   - is_voice_over_running
   - is_guided_access_enabled
   - is_bold_text_enabled
   - is_grayscale_enabled
   - is_speak_selection_enabled
   - is_speak_screen_enabled
   - is_assistive_touch_running
   - return_reasons_enabled
   - return_assistant_enabled

2. Change AnalyticsManager init place
3. Add EU server for MixPanel

[ValentinaIancu-Gini]

@mrkulik if you have issues with the merge conflicts we can stay together to fix them. Just let me know.

[sonarcloud[bot]]

Quality Gate passed

Issues
2 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud