fix(all): multiple findings and fixes

[Wondertan]

Multiple independent commits that just fix minor things. Happy to answer any questions about each, if any.

[Wondertan]

711e86a, ba8637f and 042ebe1 are basically fix of artifacts from #730

[Wondertan]

self suggestions to quickly apply the change

[codecov-commenter]

Codecov Report

Merging #807 (c4421e5) into main (a422ce1) will increase coverage by 0.46%.
The diff coverage is 89.18%.

@@            Coverage Diff             @@
##             main     #807      +/-   ##
==========================================
+ Coverage   53.15%   53.61%   +0.46%     
==========================================
  Files         117      118       +1     
  Lines        6750     6714      -36     
==========================================
+ Hits         3588     3600      +12     
+ Misses       2798     2750      -48     
  Partials      364      364              

Impacted Files	Coverage Δ
ipld/retriever.go	90.37% <66.66%> (-0.33%)	⬇️
ipld/nmt_adder.go	68.00% <100.00%> (+4.66%)	⬆️
ipld/plugin/nmt.go	44.55% <100.00%> (+8.66%)	⬆️
node/rpc/component.go	100.00% <100.00%> (ø)
node/services/service.go	83.75% <100.00%> (ø)
service/rpc/middleware.go	100.00% <100.00%> (ø)
service/rpc/server.go	79.06% <100.00%> (-0.94%)	⬇️
service/share/light_availability.go	92.30% <100.00%> (+8.97%)	⬆️
header/core/listener.go	52.83% <0.00%> (-5.67%)	⬇️
das/daser.go	73.68% <0.00%> (-2.64%)	⬇️
... and 4 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update c31bc64...c4421e5. Read the comment docs.

[renaynay]

merge conflict @Wondertan

[Wondertan]

Fixed

[liamsi]

👏🏼