Add webkitdirectory to the boolean attributes list

[voidpumpkin]

Description

Fixes #2968

Checklist

• I have reviewed my own code
• I have added tests
• I tested manually as this a bit of a custom case

[github-actions]

Visit the preview URL for this PR (updated for commit 9290673):

https://yew-rs-api--pr3214-bool-into-prop-value-gcv6mn98.web.app

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[github-actions]

Size Comparison

examples	master (KB)	pull request (KB)	diff (KB)	diff (%)
async_clock	104.221	104.221	0	0.000%
boids	174.482	174.482	0	0.000%
communication_child_to_parent	96.494	96.494	0	0.000%
communication_grandchild_with_grandparent	108.454	108.454	0	0.000%
communication_grandparent_to_grandchild	104.707	104.707	0	0.000%
communication_parent_to_child	93.553	93.553	0	0.000%
contexts	109.524	109.524	0	0.000%
counter	90.289	90.289	0	0.000%
counter_functional	90.622	90.622	0	0.000%
dyn_create_destroy_apps	93.141	93.141	0	0.000%
file_upload	104.141	104.141	0	0.000%
function_memory_game	168.537	168.537	0	0.000%
function_router	337.636	337.636	0	0.000%
function_todomvc	162.881	162.881	0	0.000%
futures	227.546	227.546	0	0.000%
game_of_life	110.459	110.459	0	0.000%
immutable	188.956	188.956	0	0.000%
inner_html	86.941	86.941	0	0.000%
js_callback	113.798	113.798	0	0.000%
keyed_list	201.070	201.070	0	0.000%
mount_point	90.053	90.053	0	0.000%
nested_list	114.402	114.402	0	0.000%
node_refs	97.290	97.290	0	0.000%
password_strength	1544.746	1544.746	0	0.000%
portals	98.554	98.554	0	0.000%
router	308.209	308.209	0	0.000%
simple_ssr	144.174	144.174	0	0.000%
ssr_router	374.432	374.432	0	0.000%
suspense	110.974	110.974	0	0.000%
timer	93.186	93.186	0	0.000%
todomvc	144.483	144.483	0	0.000%
two_apps	90.943	90.943	0	0.000%
web_worker_fib	154.883	154.883	0	0.000%
webgl	89.580	89.580	0	0.000%

✅ None of the examples has changed their size significantly.

[github-actions]

Benchmark - SSR

Yew Master

Benchmark	Round	Min (ms)	Max (ms)	Mean (ms)	Standard Deviation
Baseline	10	345.514	381.244	366.272	11.560
Hello World	10	689.302	738.213	714.543	17.541
Function Router	10	2521.955	2737.199	2582.716	67.492
Concurrent Task	10	1009.169	1010.602	1009.675	0.524
Many Providers	10	1834.711	1966.913	1885.465	42.908

Pull Request

Benchmark	Round	Min (ms)	Max (ms)	Mean (ms)	Standard Deviation
Baseline	10	342.073	382.073	357.650	12.468
Hello World	10	691.173	731.334	708.978	15.815
Function Router	10	2455.343	2581.827	2529.991	33.827
Concurrent Task	10	1007.754	1010.138	1009.123	0.790
Many Providers	10	1764.078	1885.489	1828.771	41.436

[futursolo]

I think we need to set / unset this attribute if its value is set to boolean or delegate this attribute to property.

Boolean attributes dictates whether it is truthy or falsy by its presence.
That is disabled={false} will cause an element to be disabled.

See: https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes#boolean_attributes

In addition, implicit string conversion feels like too JavaScript-ish to me. This is usually discouraged in Rust.

[voidpumpkin]

If I understood correctly webkitdirectory is an attribute with wide coverage in browsers, but has not been fully standardized. This is why it ia not present in the list.

The spec also mentions that webkitdirectory is not yet standardized, ctlf+f webkitdirectory in the spec to see the note.