* feat(react): make React schematics use babel-jest by default
The babelJest option was removed from the React application
and library schematics and set to true by default
ISSUES CLOSED: 2365
* feat(react): remove babelJest option test
- removes the `differentialLoading` build option
- differential loading is always enabled for prod builds
BEFORE (without ESM):
Benchmark #1: nx build demo --prod
Time (mean ± σ): 13.834 s ± 1.731 s [User: 11.817 s, System: 1.352 s]
Range (min … max): 11.947 s … 16.015 s 10 runs
AFTER (with ESM):
Benchmark #1: nx build demo --prod
Time (mean ± σ): 18.711 s ± 1.310 s [User: 12.172 s, System: 1.394 s]
Range (min … max): 17.232 s … 20.770 s 10 runs
