Show deal sizes is sealing sectors

[magik6k]

(review commit-by-commit)

[codecov]

Codecov Report

Merging #7261 (dfc0392) into master (b089cc4) will decrease coverage by 0.02%.
The diff coverage is 40.00%.

@@            Coverage Diff             @@
##           master    #7261      +/-   ##
==========================================
- Coverage   39.14%   39.11%   -0.03%     
==========================================
  Files         614      614              
  Lines       64965    64983      +18     
==========================================
- Hits        25429    25419      -10     
- Misses      35135    35156      +21     
- Partials     4401     4408       +7     

Impacted Files	Coverage Δ
api/api_storage.go	0.00% <ø> (ø)
cmd/lotus-miner/sectors.go	11.30% <36.25%> (+0.24%)	⬆️
storage/miner_sealing.go	85.88% <100.00%> (+0.88%)	⬆️
extern/sector-storage/sched_resources.go	75.00% <0.00%> (-9.38%)	⬇️
chain/actors/builtin/paych/paych.go	16.88% <0.00%> (-5.20%)	⬇️
chain/exchange/peer_tracker.go	66.66% <0.00%> (-4.31%)	⬇️
extern/sector-storage/manager_calltracker.go	59.03% <0.00%> (-3.53%)	⬇️
node/hello/hello.go	63.63% <0.00%> (-3.41%)	⬇️
extern/storage-sealing/fsm.go	56.22% <0.00%> (-2.82%)	⬇️
blockstore/buffered.go	40.00% <0.00%> (-2.23%)	⬇️
... and 8 more

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[Stebalien]

Two nits but this seems like a reasonable refactor. But I haven't tested it so I'll leave that to you.

[Stebalien]

Can we avoid hard-coding?