Optimize jsx/core bundle size by extracting defaultProps #4345

Job	Run time
Filter jobs	3s
Filter jobs	2s
Compressed Size / build	54s
Compressed Size / build	53s
Build & Test / Build & Test	1m 8s
Build & Test / Build & Test	1m 10s
Benchmarks / Prepare environment	5s
Benchmarks / Prepare environment	7s
Benchmarks / Bench many-updates / Bench many-updates/many-updates	1m 56s
Benchmarks / Bench many-updates / Bench many-updates/many-updates	1m 46s
Benchmarks / Bench replace1k / Bench table-app/replace1k	2m 14s
Benchmarks / Bench replace1k / Bench table-app/replace1k	3m 10s
Benchmarks / Bench filter-list / Bench filter-list/filter-list	2m 4s
Benchmarks / Bench filter-list / Bench filter-list/filter-list	1m 51s
Benchmarks / Bench hydrate1k / Bench table-app/hydrate1k	3m 31s
Benchmarks / Bench hydrate1k / Bench table-app/hydrate1k	2m 47s
Benchmarks / Bench create10k / Bench table-app/create10k	2m 45s
Benchmarks / Bench create10k / Bench table-app/create10k	2m 57s
Benchmarks / Bench text-update / Bench text-update/text-update	2m 8s
Benchmarks / Bench text-update / Bench text-update/text-update	1m 46s
Benchmarks / Bench todo / Bench todo/todo	1m 27s
Benchmarks / Bench todo / Bench todo/todo	1m 37s
Benchmarks / Bench 03_update10th1k_x16 / Bench table-app/update10th1k	1m 20s
Benchmarks / Bench 03_update10th1k_x16 / Bench table-app/update10th1k	1m 26s
	39m 7s

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