feat(share/availability): Dont store q4 on archival

[walldiss]

Avoid storing q4 for data outside of availability window

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 25.53191% with 35 lines in your changes missing coverage. Please review.

Please upload report for BASE (shwap@2c67306). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
store/store.go	20.00%	23 Missing and 1 partial ⚠️
store/metrics.go	20.00%	4 Missing ⚠️
share/availability/full/availability.go	40.00%	2 Missing and 1 partial ⚠️
core/eds.go	60.00%	1 Missing and 1 partial ⚠️
header/headertest/fraud/testing.go	0.00%	1 Missing ⚠️
libs/edssser/edssser.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##             shwap    #3751   +/-   ##
========================================
  Coverage         ?   46.74%           
========================================
  Files            ?      314           
  Lines            ?    17933           
  Branches         ?        0           
========================================
  Hits             ?     8383           
  Misses           ?     8535           
  Partials         ?     1015           

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[Wondertan]

One duplication nit, lgtm otherwise