Send enabled SDK features with the event payload, so we can track their
adoption in Looker.

Add support for catching sigterm signals.

Co-authored-by: Philipp Hofmann <philipp.hofmann@sentry.io>

The SentryViewHierarchyTests only need to reset the
SentryDependencyContainer and not reset the whole global test state.

Fix a data race when calling reportFullyDisplayed from a background
thread by synchronizing the call to the main queue.

Calling flush directly after capturing any envelope did not ensure that
the SDK flushes the captured envelope. This is fixed now.

The hacky solution introduced in the PR #3774 is breaking compilation for Xcode 15.4

This solution will keep both Xcode 15 (.3 and .4) working.

I believe we can remove the version replacement after a few months after Xcode 15.4 release.

Our SDK got bigger because we added plenty of new features. 700 KiB
is still acceptable.

The test timed out in CI. Let's disable logs to speed it up.

Fix a deadlock when two threads access SentrySDK.options and
SentrySDK.currentHub, which used the same object in synchronized.
This problem is fixed now by using two independent locks for
SentrySDK.options and SentrySDK.currentHub.

Fixes GH-3956, Fixes GH-3899

Co-authored-by: Philipp Hofmann <philipp.hofmann@sentry.io>

Added a reference SentryCrashExceptionApplication inside the SDK to
prevent the compiler from stripping it.


Co-authored-by: Philipp Hofmann <philipp.hofmann@sentry.io>