Release notes for 546

Stylize Toolbox Asset Preview layout

Added Client Guid, User Guid and Session Guid tracking info to Backtrace and Startup teleemetry. Deprecated ClientID field from backtrace.

Implementation of LifecycleManager and lifecycle management of components.

Replaced all Analytics::Event::getSessionId and clientId with Studio's Launchtracking info ones.

Fixed a bug where Streaming Enabled vehicles would sometimes disassemble when streaming out and streaming back in for some players.

Fix RaycastResult comparison. Different RaycastResults hitting the same part at the same distance but at different hit locations will now compare unequal as they should have.

Messages sent via TextChatService will no longer allow for new line characters and will escape player's rich text tags.

Fix packages inserting at unpredictable locations in the workspace.

Fixed file opening bug after turning on Mac External PKCE.