feat: track errors using Sentry

[adil192]

I will be adding Sentry to help me identify and fix errors much more easily. It will be opt-in.
Please do not run the app from this branch unless you are aware and consenting to its current data collection, since it doesn't currently have consent screens etc.
I will be taking steps to remove sensitive or identifiable information, both locally and on Sentry's console.

TODO:

• Install sentry
• Filter out sensitive information (ongoing)
  • Filter out strings that looks like emails, domains, file names, etc
  • Explicitly filter out username/email/password like with GitHub secrets
• Add opt-in consent dialog
• Add consent to settings page
• Remove sentry from FOSS builds
• Update privacy policy
• Make sure github build/test workflows succeed
• Replace "Logs are only kept until you close the app" message since shared errors are kept longer than that
• Test on all platforms
  • Linux: Doesn't work so I've disabled Sentry in linux builds
  • macOS: Works
  • Windows: ?
  • Android: Works
  • iOS: Works
• Update app stores' data privacy information

[codecov]

Codecov Report

❌ Patch coverage is 58.74126% with 59 lines in your changes missing coverage. Please review.
✅ Project coverage is 48.56%. Comparing base (54ff513) to head (5d448db).
⚠️ Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
lib/data/sentry/sentry_init.dart	14.81%	23 Missing ⚠️
lib/components/settings/settings_sentry.dart	4.54%	21 Missing ⚠️
lib/components/home/sentry_consent_dialog.dart	74.41%	11 Missing ⚠️
lib/components/settings/app_info.dart	0.00%	2 Missing ⚠️
lib/pages/home/home.dart	66.66%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1495      +/-   ##
==========================================
+ Coverage   47.99%   48.56%   +0.56%     
==========================================
  Files         118      124       +6     
  Lines        8723     8968     +245     
==========================================
+ Hits         4187     4355     +168     
- Misses       4536     4613      +77     

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[adil192]

For those interested in what I see:

Screenshot of the Sentry web interface