feat(engine): @lwc/node-reactions

[ravijayaramappa]

Details

Library to react to dom elements connecting and disconnecting from the document
RFC: salesforce/lwc-rfcs#11

#Original PR
#1504

POC

#1431

Does this PR introduce breaking changes?

• ✅ No, it does not introduce breaking changes.

The PR fulfills these requirements:

• Have tests for the proposed changes been added? ✅
• Have you followed these instructions to clearly describe the issue being fixed or feature enhanced? ✅

GUS work item

W-6352642

[salesforce-best-lwc-internal]

⚠ Performance Regression

Best has detected that there is a 9.1% performance regression across your benchmarks.

Please click here to see more details.

Click to view significantly changed benchmarks

lwc-engine-benchmark

✅ Improvements	base (2876896)	target (1abe517)	trend
table-clear-1k.benchmark/benchmark-table/clear/1k	12.33 (± 0.22ms)	6.92 (± 0.40ms)	-5.4ms (43.9%)

❌ Regressions	base (2876896)	target (1abe517)	trend
table-append-1k.benchmark/benchmark-table/append/1k	266.67 (± 1.78ms)	292.31 (± 2.22ms)	+25.6ms (9.6%)
table-create-10k.benchmark/benchmark-table/create/10k	1462.48 (± 8.83ms)	1566.03 (± 12.66ms)	+103.5ms (7.1%)
table-create-1k.benchmark/benchmark-table/create/1k	157.62 (± 1.60ms)	179.64 (± 1.02ms)	+22.0ms (14.0%)
tablecmp-append-1k.benchmark/benchmark-table-component/append/1k	390.02 (± 3.35ms)	432.05 (± 3.51ms)	+42.0ms (10.8%)
tablecmp-clear-1k.benchmark/benchmark-table-component/clear/1k	6.01 (± 0.20ms)	12.22 (± 0.30ms)	+6.2ms (103.2%)
tablecmp-create-10k.benchmark/benchmark-table-component/create/10k	2332.62 (± 15.85ms)	2559.31 (± 13.30ms)	+226.7ms (9.7%)
wc-clear-1k.benchmark/benchmark-table-wc/clear/1k	29.01 (± 0.46ms)	39.38 (± 0.71ms)	+10.4ms (35.7%)

[ravijayaramappa]

This branch is old and not updated. It will be superseded by #2032