Add options to customize UserFeedback error messages

[itaybre]

Adds customization to error messages in user feedback.

Closes: #4720

Closes #6824

[github-actions]

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

Generated by 🚫 dangerJS against d868a00

[codecov]

Codecov Report

❌ Patch coverage is 70.58824% with 5 lines in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (main@0a17f4a). Learn more about missing BASE report.
⚠️ Report is 3 commits behind head on main.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
...serFeedback/SentryUserFeedbackFormController.swift	0.000%	4 Missing ⚠️
...UserFeedback/SentryUserFeedbackFormViewModel.swift	90.000%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##             main     #6790   +/-   ##
========================================
  Coverage        ?   84.589%           
========================================
  Files           ?       453           
  Lines           ?     27605           
  Branches        ?     10686           
========================================
  Hits            ?     23351           
  Misses          ?      4211           
  Partials        ?        43           

Files with missing lines	Coverage Δ
...guration/SentryUserFeedbackFormConfiguration.swift	100.000% <100.000%> (ø)
...UserFeedback/SentryUserFeedbackFormViewModel.swift	86.094% <90.000%> (ø)
...serFeedback/SentryUserFeedbackFormController.swift	25.806% <0.000%> (ø)

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[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1225.50 ms	1263.25 ms	37.75 ms
Size	24.14 KiB	1.01 MiB	1014.05 KiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
48e5c8a	1223.02 ms	1242.38 ms	19.35 ms
8fd192f	1202.10 ms	1220.19 ms	18.09 ms
5200f5b	1231.73 ms	1254.35 ms	22.62 ms
f8cad3c	1217.94 ms	1257.96 ms	40.02 ms
abe8da4	1232.98 ms	1259.12 ms	26.14 ms
4be5cd8	1222.35 ms	1251.43 ms	29.07 ms
af7a86c	1220.82 ms	1243.36 ms	22.54 ms
52f3b6e	1219.57 ms	1239.70 ms	20.13 ms
ebc72be	1221.24 ms	1249.66 ms	28.42 ms
1339919	1214.82 ms	1238.98 ms	24.16 ms

App size

Revision	Plain	With Sentry	Diff
48e5c8a	23.75 KiB	913.63 KiB	889.88 KiB
8fd192f	23.74 KiB	872.75 KiB	849.01 KiB
5200f5b	23.75 KiB	933.33 KiB	909.58 KiB
f8cad3c	23.75 KiB	1.01 MiB	1016.13 KiB
abe8da4	23.75 KiB	987.95 KiB	964.21 KiB
4be5cd8	23.75 KiB	980.80 KiB	957.06 KiB
af7a86c	23.74 KiB	926.65 KiB	902.90 KiB
52f3b6e	23.75 KiB	920.54 KiB	896.79 KiB
ebc72be	23.75 KiB	908.22 KiB	884.47 KiB
1339919	23.75 KiB	919.70 KiB	895.95 KiB

Previous results on branch: itay/customizable_error_messages_user_feedback

Startup times

Revision	Plain	With Sentry	Diff
0a4f9de	1226.93 ms	1257.07 ms	30.14 ms
0c266cf	1212.15 ms	1244.50 ms	32.35 ms
a7923cd	1226.25 ms	1260.19 ms	33.94 ms
8c54771	1229.91 ms	1260.40 ms	30.49 ms

App size

Revision	Plain	With Sentry	Diff
0a4f9de	24.15 KiB	1.02 MiB	1016.05 KiB
0c266cf	24.14 KiB	1.01 MiB	1013.95 KiB
a7923cd	24.15 KiB	1.02 MiB	1016.05 KiB
8c54771	24.14 KiB	1.01 MiB	1014.01 KiB

[philipphofmann]

LGTM