feat(insights): Remove Web Vital issue detection project allow list and add batching

[edwardgou-sentry]

• Removes project allowlist usage in Web Vitals Issue Detection task
  • Task now runs against all eligible projects (settings enabled, seer acknowledged, etc)
  • Task is still protected by a global issue-detection.web-vitals-detection.enabled option
• Small optimization to groups projects into batches of 1000

[edwardgou-sentry]

Another improvement could be to add a countdown to each detection task so that we spread out the load, but the pool of eligible projects is already very small. I think we can wait to see what the traffic looks like before further optimization.

[codecov]

Codecov Report

❌ Patch coverage is 88.88889% with 2 lines in your changes missing coverage. Please review.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
src/sentry/tasks/web_vitals_issue_detection.py	88.88%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           master   #103740      +/-   ##
===========================================
+ Coverage   79.70%    80.59%   +0.89%     
===========================================
  Files        9273      9274       +1     
  Lines      395877    395934      +57     
  Branches    25220     25220              
===========================================
+ Hits       315537    319118    +3581     
+ Misses      79911     76387    -3524     
  Partials      429       429