* fix(screenshare): adjust session cleanup and event emission order
Revised the handling of `stoppedListener` initialization in
`getManagedSession` to ensure correct scoping and lifecycle management.
Updated the `stop` method in `CScreenshareSession` to adjust the order
of `screenshareEvents` and `stopped.emit()` to prevent potential
use-after-free scenarios.
* fix(screenshare): ensure managedSession removal uses consistent target reference
This change updates the lambda in the stopped listener to use
a pre-fetched target pointer for comparison when erasing sessions.
* fix(screenshare): use early-return and smart ptr comparison in session cleanup
4ab3a40398