Avoid stopping appStartProfiler after application creation

[stefanosiano]

:scroll: Description

AppStartMetrics stops appStartProfiler only if no activity ever started

:bulb: Motivation and Context

We were always stopping appStartProfiler after application creation. Not a real issue, as the profiler should already be detatched from AppStartMetrics at that point.

:green_heart: How did you test it?

Unit test

:pencil: Checklist

• [ ] I reviewed the submitted code.
• [ ] I added tests to verify the changes.
• [ ] No new PII added or SDK only sends newly added PII if sendDefaultPII is enabled.
• [ ] I updated the docs if needed.
• [ ] Review from the native team if needed.
• [ ] No breaking change or entry added to the changelog.
• [ ] No breaking change for hybrid SDKs or communicated to hybrid SDKs.

:crystal_ball: Next steps

[github-actions[bot]]

Performance metrics :rocket:

	Plain	With Sentry	Diff
Startup time	451.55 ms	452.46 ms	0.91 ms
Size	1.70 MiB	2.35 MiB	660.81 KiB

Previous results on branch: fix/app-start-profiler-avoid-stop

Startup times

Revision	Plain	With Sentry	Diff
0fe51fcfcd9884de0c05c286be3e9e0ecb7b54af	391.55 ms	460.24 ms	68.69 ms

App size

Revision	Plain	With Sentry	Diff
0fe51fcfcd9884de0c05c286be3e9e0ecb7b54af	1.70 MiB	2.35 MiB	659.90 KiB