[Fix] trim(): Passing null to parameter of type string is deprecated in GmailDeliveryReportExtractor (#16113)
[Fix] http_build_query(): Passing null to parameter of type string is deprecated in Qu/La/OAuthConnector/Infrastructure/Client/MicrosoftGuzzleClient (#16089)
[Fix] strlen(): Passing null to parameter of type string is deprecated in La/Rules/Actions/SendMail (#16080)
[Fix] Incorrect urls in plugin controllers (#15980)
[Fix] Call recordings are not merged (#15853)
[Fix] Notes are not merged (#15760)
[Fix] 'DataIntegrityException: Agent service not found' error when agent try to log in to agent's panel. (#15589)
[Other] Refactorings and other fixes (#16096)(#16133)
