Chunk dependent deletes and sweep orphan LOIs/submissions

[rfontanarosa]

closes #1532

[codecov-commenter]

Codecov Report

❌ Patch coverage is 3.57143% with 27 lines in your changes missing coverage. Please review.
✅ Project coverage is 62.29%. Comparing base (e257d5a) to head (ea56a99).
⚠️ Report is 4 commits behind head on master.

Files with missing lines	Patch %	Lines
.../src/app/services/data-store/data-store.service.ts	3.57%	27 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2520      +/-   ##
==========================================
- Coverage   62.58%   62.29%   -0.30%     
==========================================
  Files         120      120              
  Lines        2865     2880      +15     
  Branches      425      426       +1     
==========================================
+ Hits         1793     1794       +1     
- Misses       1012     1026      +14     
  Partials       60       60              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.