fix: issue #1304 activeElement should be patched in the prototype

[jodarove]

Details

Addresses #1304

In the synthetic shadow we patch the activeElement on the document. this PR patch changes this behavior patching the activeElement in the Document.prototype

Does this PR introduce breaking changes?

• ✅ No, it does not introduce breaking changes.

[jodarove]

@davidturissini @caridy do you foresee any issue with this change?

[caridy]

remove the comment and close the issue when you merge this.

[caridy]

update the comment, and merge.

[salesforce-best-lwc-internal]

Benchmark results

Base commit: 55b962b | Target commit: 49faecd

lwc-engine-benchmark

table-append-1k	metric	base(55b962b)	target(49faecd)	trend
benchmark-table/append/1k	duration	142.75 (±4.35 ms)	137.60 (±4.05 ms)	-5.2ms (3.6%) 👍

table-clear-1k	metric	base(55b962b)	target(49faecd)	trend
benchmark-table/clear/1k	duration	10.40 (±0.90 ms)	11.10 (±1.00 ms)	+0.7ms (6.7%) 👎

table-create-10k	metric	base(55b962b)	target(49faecd)	trend
benchmark-table/create/10k	duration	846.85 (±5.40 ms)	848.00 (±6.10 ms)	+1.1ms (0.1%) 👌

table-create-1k	metric	base(55b962b)	target(49faecd)	trend
benchmark-table/create/1k	duration	108.65 (±3.05 ms)	107.75 (±1.85 ms)	-0.9ms (0.8%) 👌

table-update-10th-1k	metric	base(55b962b)	target(49faecd)	trend
benchmark-table/update-10th/1k	duration	69.90 (±3.75 ms)	77.10 (±3.70 ms)	+7.2ms (10.3%) 👎

tablecmp-append-1k	metric	base(55b962b)	target(49faecd)	trend
benchmark-table-component/append/1k	duration	211.15 (±16.90 ms)	225.85 (±10.10 ms)	+14.7ms (7.0%) 👎

tablecmp-clear-1k	metric	base(55b962b)	target(49faecd)	trend
benchmark-table-component/clear/1k	duration	6.90 (±1.20 ms)	6.80 (±1.05 ms)	-0.1ms (1.4%) 👌

tablecmp-create-10k	metric	base(55b962b)	target(49faecd)	trend
benchmark-table-component/create/10k	duration	1614.20 (±13.20 ms)	1606.95 (±11.90 ms)	-7.2ms (0.4%) 👍

tablecmp-create-1k	metric	base(55b962b)	target(49faecd)	trend
benchmark-table-component/create/1k	duration	184.05 (±5.60 ms)	184.15 (±4.85 ms)	+0.1ms (0.1%) 👌

tablecmp-update-10th-1k	metric	base(55b962b)	target(49faecd)	trend
benchmark-table-component/update-10th/1k	duration	68.00 (±4.45 ms)	68.35 (±3.70 ms)	+0.3ms (0.5%) 👌

wc-append-1k	metric	base(55b962b)	target(49faecd)	trend
benchmark-table-wc/append/1k	duration	254.60 (±7.65 ms)	247.55 (±6.85 ms)	-7.0ms (2.8%) 👍

wc-clear-1k	metric	base(55b962b)	target(49faecd)	trend
benchmark-table-wc/clear/1k	duration	11.90 (±1.35 ms)	11.90 (±1.75 ms)	0.0ms (0.0%) 👌

wc-create-10k	metric	base(55b962b)	target(49faecd)	trend
benchmark-table-wc/create/10k	duration	1929.90 (±12.50 ms)	1933.00 (±9.90 ms)	+3.1ms (0.2%) 👌

wc-create-1k	metric	base(55b962b)	target(49faecd)	trend
benchmark-table-wc/create/1k	duration	234.80 (±5.85 ms)	233.40 (±6.05 ms)	-1.4ms (0.6%) 👌

wc-update-10th-1k	metric	base(55b962b)	target(49faecd)	trend
benchmark-table-wc/update-10th/1k	duration	64.80 (±4.85 ms)	65.80 (±4.05 ms)	+1.0ms (1.5%) 👌