fix(sdk-init): Do not override user-defined SentryOptions

[romtsn]

📜 Description

• Check for NoOpInstance before setting the defaults

💡 Motivation and Context

Closes #2565

💚 How did you test it?

unit tests

📝 Checklist

• 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.
• I updated the wizard 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.

🔮 Next steps

[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	433.30 ms	492.67 ms	59.37 ms
Size	1.58 MiB	2.22 MiB	653.07 KiB

Previous results on branch: rz/fix/ignored-options

Startup times

Revision	Plain	With Sentry	Diff
0e342d8	460.10 ms	473.59 ms	13.49 ms
927ac33	406.56 ms	456.48 ms	49.92 ms

App size

Revision	Plain	With Sentry	Diff
0e342d8	1.58 MiB	2.21 MiB	646.80 KiB
927ac33	1.58 MiB	2.22 MiB	653.06 KiB

[markushi]

LGTM!