fix: emit clear error for miscapitalized HTML attribute names

[Madoshakalaka]

Description

When an attribute like onSubmit doesn't exactly match a known listener/boolean/special prop but matches case-insensitively, emit "Did you mean onsubmit?" instead of a cryptic IntoPropValue trait bound error.

Fixes #3996

Checklist

• I have reviewed my own code
• I have added tests

[github-actions]

Visit the preview URL for this PR (updated for commit d0eb878):

https://yew-rs-api--pr3998-fix-case-insensitive-3fobzaue.web.app

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[github-actions]

Benchmark - SSR

Yew Master

Details

Benchmark	Round	Min (ms)	Max (ms)	Mean (ms)	Standard Deviation
Baseline	10	270.259	274.336	270.940	1.214
Hello World	10	466.006	477.075	473.211	3.192
Function Router	10	1568.746	1598.163	1582.444	11.810
Concurrent Task	10	1005.198	1006.792	1006.146	0.584
Many Providers	10	991.184	1022.658	1003.086	10.121

Pull Request

Details

Benchmark	Round	Min (ms)	Max (ms)	Mean (ms)	Standard Deviation
Baseline	10	270.400	270.664	270.509	0.084
Hello World	10	462.928	478.610	473.557	5.918
Function Router	10	1548.684	1572.429	1561.320	7.692
Concurrent Task	10	1004.616	1006.562	1005.696	0.531
Many Providers	10	1002.047	1046.922	1017.949	15.409

[github-actions]

Size Comparison

Details

examples	master (KB)	pull request (KB)	diff (KB)	diff (%)
async_clock	96.883	96.883	0	0.000%
boids	165.464	165.464	0	0.000%
communication_child_to_parent	89.884	89.884	0	0.000%
communication_grandchild_with_grandparent	100.922	100.922	0	0.000%
communication_grandparent_to_grandchild	97.416	97.416	0	0.000%
communication_parent_to_child	87.301	87.301	0	0.000%
contexts	102.917	102.917	0	0.000%
counter	84.032	84.032	0	0.000%
counter_functional	85.380	85.380	0	0.000%
dyn_create_destroy_apps	87.104	87.104	0	0.000%
file_upload	96.560	96.560	0	0.000%
function_delayed_input	90.956	90.956	0	0.000%
function_memory_game	168.992	168.992	0	0.000%
function_router	326.395	326.395	0	0.000%
function_todomvc	160.896	160.896	0	0.000%
futures	232.362	232.362	0	0.000%
game_of_life	102.282	102.282	0	0.000%
immutable	244.593	244.593	0	0.000%
inner_html	78.613	78.613	0	0.000%
js_callback	107.432	107.432	0	0.000%
keyed_list	177.152	177.152	0	0.000%
mount_point	81.743	81.743	0	0.000%
nested_list	110.726	110.726	0	0.000%
node_refs	89.188	89.188	0	0.000%
password_strength	1726.254	1726.254	0	0.000%
portals	90.763	90.763	0	0.000%
router	296.969	296.969	0	0.000%
suspense	110.940	110.940	0	0.000%
timer	86.566	86.566	0	0.000%
timer_functional	96.091	96.091	0	0.000%
todomvc	139.499	139.499	0	0.000%
two_apps	83.895	83.895	0	0.000%
web_worker_fib	133.646	133.646	0	0.000%
web_worker_prime	184.601	184.601	0	0.000%
webgl	81.243	81.243	0	0.000%

✅ None of the examples has changed their size significantly.