feat: delete/empty items in background

[dundee]

closes #293

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.47%. Comparing base (58ad4d3) to head (fb79e9d).
Report is 3 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #336      +/-   ##
==========================================
+ Coverage   90.02%   90.47%   +0.44%     
==========================================
  Files          32       34       +2     
  Lines        3469     3653     +184     
==========================================
+ Hits         3123     3305     +182     
- Misses        279      281       +2     
  Partials       67       67              

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