feat: support arrays for Classes/classes!()

[pouriya]

support [Into<Classes>;SIZE] directly

instead of using .as_ref():

use yew::{classes, html};

let classes = ["class-1", "class-2"];

html! {
  <div class={classes!(classes.as_ref())}></div>
};

now we can do this:

use yew::{classes, html};

html! {
  <div class={classes!(["class-1", "class-2"])}></div>
};

Checklist

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

[github-actions]

Visit the preview URL for this PR (updated for commit 8f7d238):

https://yew-rs--pr3393-support-arrays-in-cl-7gnj1iul.web.app

_{(expires Tue, 12 Sep 2023 09:09:31 GMT)}

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[github-actions]

Size Comparison

examples	master (KB)	pull request (KB)	diff (KB)	diff (%)
async_clock	102.553	102.553	0	0.000%
boids	175.839	175.839	0	0.000%
communication_child_to_parent	95.528	95.528	0	0.000%
communication_grandchild_with_grandparent	109.276	109.276	0	0.000%
communication_grandparent_to_grandchild	105.943	105.943	0	0.000%
communication_parent_to_child	93.015	93.015	0	0.000%
contexts	111.246	111.246	0	0.000%
counter	89.424	89.424	0	0.000%
counter_functional	90.161	90.161	0	0.000%
dyn_create_destroy_apps	92.599	92.599	0	0.000%
file_upload	103.755	103.755	0	0.000%
function_memory_game	174.813	174.813	0	0.000%
function_router	352.635	352.635	0	0.000%
function_todomvc	163.743	163.743	0	0.000%
futures	227.987	227.987	0	0.000%
game_of_life	112.538	112.538	0	0.000%
immutable	189.453	189.453	0	0.000%
inner_html	86.210	86.210	0	0.000%
js_callback	113.474	113.474	0	0.000%
keyed_list	201.532	201.532	0	0.000%
mount_point	89.412	89.412	0	0.000%
nested_list	114.839	114.839	0	0.000%
node_refs	96.518	96.518	0	0.000%
password_strength	1584.306	1584.306	0	0.000%
portals	98.595	98.595	0	0.000%
router	318.773	318.773	0	0.000%
simple_ssr	144.353	144.353	0	0.000%
ssr_router	390.387	390.387	0	0.000%
suspense	119.111	119.111	0	0.000%
timer	91.974	91.974	0	0.000%
timer_functional	100.682	100.682	0	0.000%
todomvc	143.905	143.905	0	0.000%
two_apps	90.124	90.124	0	0.000%
web_worker_fib	154.711	154.711	0	0.000%
webgl	88.729	88.729	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	424.089	430.845	427.813	1.671
Hello World	10	774.756	785.497	781.234	3.013
Function Router	10	2508.327	2530.200	2520.488	6.712
Concurrent Task	10	1007.969	1010.759	1009.458	1.039
Many Providers	10	1723.912	1760.124	1738.000	9.841

Pull Request

Benchmark	Round	Min (ms)	Max (ms)	Mean (ms)	Standard Deviation
Baseline	10	424.887	428.643	427.932	1.141
Hello World	10	779.179	785.020	781.509	2.140
Function Router	10	2510.827	2571.026	2523.753	17.487
Concurrent Task	10	1007.466	1013.242	1009.708	1.569
Many Providers	10	1728.820	1769.728	1748.934	12.877

[ranile]

Thanks!