feat: ensure repaint on replay screenshot capture

[vaind]

📜 Description

• on iOS - ensure the screen is painted and run the capture after a frame (this was actually a bug because we could run it during widget build process)
• on Android - Previously, we only captured a new screenshot when there was a paint after 1 second after the previous one. So if there were frames just after the previous one we captured (like during an animation, transition, etc) and the screen "settled" in in less than a second since our last capture, we're not going to capture the new state at all. I went for the simpler route of forcing a frame but if we want, the alternative would be to register a persistent frame listener and keep the information that there was a change between the last screenshot and "now", when the time for a new screenshot comes.

💡 Motivation and Context

💚 How did you test it?

📝 Checklist

• I reviewed submitted code
• I added tests to verify changes
• No new PII added or SDK only sends newly added PII if sendDefaultPii is enabled
• I updated the docs if needed
• All tests passing
• No breaking changes

🔮 Next steps

[github-actions]

	Messages
📖	Do not forget to update Sentry-docs with your feature once the pull request gets approved.

Generated by 🚫 dangerJS against c141e10

[codecov]

Codecov Report

Attention: Patch coverage is 90.90909% with 2 lines in your changes missing coverage. Please review.

Project coverage is 91.81%. Comparing base (19a9adb) to head (c141e10).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...tter/lib/src/native/cocoa/sentry_native_cocoa.dart	87.50%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2527      +/-   ##
==========================================
+ Coverage   87.13%   91.81%   +4.68%     
==========================================
  Files         265       88     -177     
  Lines        9429     3068    -6361     
==========================================
- Hits         8216     2817    -5399     
+ Misses       1213      251     -962     

☔ View full report in Codecov by Sentry.
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[github-actions]

iOS Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1256.69 ms	1280.59 ms	23.90 ms
Size	8.42 MiB	9.86 MiB	1.44 MiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
683fd34	1239.83 ms	1259.08 ms	19.25 ms
bd37365	1236.22 ms	1243.27 ms	7.04 ms
202b83f	1206.16 ms	1225.33 ms	19.16 ms
d4d0807	1246.94 ms	1260.69 ms	13.75 ms
0bed04d	1235.57 ms	1251.02 ms	15.45 ms
5603ab2	1268.47 ms	1280.73 ms	12.26 ms
9d7e862	1236.88 ms	1258.62 ms	21.74 ms
4dc231b	1232.12 ms	1263.50 ms	31.38 ms
6aab859	1245.14 ms	1247.59 ms	2.45 ms
be8cafe	1239.94 ms	1266.20 ms	26.27 ms

App size

Revision	Plain	With Sentry	Diff
683fd34	8.28 MiB	9.34 MiB	1.06 MiB
bd37365	8.28 MiB	9.34 MiB	1.06 MiB
202b83f	8.33 MiB	9.40 MiB	1.07 MiB
d4d0807	8.33 MiB	9.64 MiB	1.31 MiB
0bed04d	8.32 MiB	9.37 MiB	1.05 MiB
5603ab2	8.15 MiB	9.12 MiB	990.57 KiB
9d7e862	8.32 MiB	9.38 MiB	1.05 MiB
4dc231b	8.38 MiB	9.77 MiB	1.40 MiB
6aab859	8.29 MiB	9.36 MiB	1.07 MiB
be8cafe	8.33 MiB	9.40 MiB	1.07 MiB

Previous results on branch: feat/capture-replay-regardless-of-paints

Startup times

Revision	Plain	With Sentry	Diff
01b6cd2	1247.55 ms	1262.73 ms	15.18 ms
b32691d	1246.86 ms	1270.83 ms	23.98 ms

App size

Revision	Plain	With Sentry	Diff
01b6cd2	8.42 MiB	9.86 MiB	1.44 MiB
b32691d	8.42 MiB	9.86 MiB	1.44 MiB

[github-actions]

Android Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	455.70 ms	546.83 ms	91.13 ms
Size	6.46 MiB	7.48 MiB	1.02 MiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
1cdcacf	389.94 ms	463.53 ms	73.59 ms
be08ed1	361.37 ms	414.84 ms	53.47 ms
3ad66e4	406.90 ms	481.48 ms	74.58 ms
ad69abc	297.35 ms	385.89 ms	88.54 ms
ef6466d	373.96 ms	443.17 ms	69.21 ms
e893df5	310.60 ms	380.58 ms	69.98 ms
f25f207	341.40 ms	427.73 ms	86.34 ms
61e71ec	343.94 ms	410.59 ms	66.66 ms
1131914	317.90 ms	361.58 ms	43.69 ms
fe4aa56	356.06 ms	428.67 ms	72.61 ms

App size

Revision	Plain	With Sentry	Diff
1cdcacf	6.33 MiB	7.26 MiB	949.77 KiB
be08ed1	6.33 MiB	7.26 MiB	946.42 KiB
3ad66e4	6.33 MiB	7.26 MiB	947.04 KiB
ad69abc	6.06 MiB	7.09 MiB	1.03 MiB
ef6466d	6.34 MiB	7.28 MiB	967.79 KiB
e893df5	6.06 MiB	7.09 MiB	1.03 MiB
f25f207	6.33 MiB	7.26 MiB	943.41 KiB
61e71ec	6.34 MiB	7.28 MiB	966.26 KiB
1131914	5.94 MiB	6.96 MiB	1.02 MiB
fe4aa56	6.06 MiB	7.10 MiB	1.04 MiB

Previous results on branch: feat/capture-replay-regardless-of-paints

Startup times

Revision	Plain	With Sentry	Diff
b32691d	466.84 ms	578.08 ms	111.24 ms

App size

Revision	Plain	With Sentry	Diff
b32691d	6.46 MiB	7.48 MiB	1.02 MiB