fix(replay): Fix crash when root view has no window or is too small

[romtsn]

📜 Description

• Set minimum screenshot size to 16 (minimum block size for encoding)
• Check earlier if a root view has an associated window - if not, then we cannot take screenshots of it and should not even track it

💡 Motivation and Context

Closes #4548
Closes #4802

💚 How did you test it?

Manually using smartlook (which adds an invisible window on top), it's a bit tricky to unit test it

📝 Checklist

• I added GH Issue ID & Linear ID
• 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

[romtsn]

@markushi not sure if this is a problem for the CanvasStrategy - or can it actually still capture this cases?

[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	385.50 ms	404.98 ms	19.48 ms
Size	1.58 MiB	2.11 MiB	539.31 KiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
3d205d0	352.15 ms	432.53 ms	80.38 ms
bdbe1f4	380.66 ms	464.44 ms	83.78 ms
9fbb112	359.71 ms	421.85 ms	62.14 ms
ee747ae	386.94 ms	431.43 ms	44.49 ms
3998a95	415.94 ms	478.54 ms	62.60 ms
14ff5ee	419.75 ms	495.73 ms	75.98 ms
ee747ae	554.98 ms	611.50 ms	56.52 ms
b750b96	408.98 ms	480.32 ms	71.34 ms
c8125f3	397.65 ms	485.14 ms	87.49 ms
b750b96	421.25 ms	444.09 ms	22.84 ms

App size

Revision	Plain	With Sentry	Diff
3d205d0	1.58 MiB	2.10 MiB	532.97 KiB
bdbe1f4	1.58 MiB	2.11 MiB	538.88 KiB
9fbb112	1.58 MiB	2.11 MiB	539.18 KiB
ee747ae	1.58 MiB	2.10 MiB	530.95 KiB
3998a95	1.58 MiB	2.10 MiB	532.96 KiB
14ff5ee	1.58 MiB	2.10 MiB	535.08 KiB
ee747ae	1.58 MiB	2.10 MiB	530.95 KiB
b750b96	1.58 MiB	2.10 MiB	533.19 KiB
c8125f3	1.58 MiB	2.10 MiB	532.32 KiB
b750b96	1.58 MiB	2.10 MiB	533.20 KiB