feat: Socket subscribe improvements

[MykhailoNester]

• add new API request for ticket data;
• provide ticket data with socket events;

[codecov]

Codecov Report

Attention: Patch coverage is 6.89655% with 54 lines in your changes missing coverage. Please review.

Project coverage is 57.85%. Comparing base (f318b22) to head (480c7dc).
Report is 4 commits behind head on master.

Files with missing lines	Patch %	Lines
...main/java/com/crowdin/platform/data/DataManager.kt	0.00%	22 Missing ⚠️
...n/platform/realtimeupdate/EchoWebSocketListener.kt	19.05%	17 Missing ⚠️
...m/crowdin/platform/data/model/TicketRequestBody.kt	0.00%	7 Missing ⚠️
.../crowdin/platform/data/model/TicketResponseBody.kt	0.00%	4 Missing ⚠️
...crowdin/platform/data/remote/CrowdingRepository.kt	0.00%	3 Missing ⚠️
...n/platform/realtimeupdate/RealTimeUpdateManager.kt	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #285      +/-   ##
============================================
- Coverage     59.32%   57.85%   -1.46%     
+ Complexity      376      375       -1     
============================================
  Files            57       58       +1     
  Lines          2008     2033      +25     
  Branches        316      323       +7     
============================================
- Hits           1191     1176      -15     
- Misses          598      639      +41     
+ Partials        219      218       -1     

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