Prefer pop_first if it is available

[futursolo]

Description

This pull request prefers BTreeMap::pop_first if it is available.

Checklist

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

[github-actions]

Visit the preview URL for this PR (updated for commit 4ed90f4):

https://yew-rs-api--pr3084-pop-first-38r9ljhm.web.app

_{(expires Sun, 15 Jan 2023 13:45:36 GMT)}

_{🔥 via Firebase Hosting GitHub Action 🌎}

[github-actions]

Benchmark - SSR

Yew Master

Benchmark	Round	Min (ms)	Max (ms)	Mean (ms)	Standard Deviation
Baseline	10	356.335	426.496	375.120	24.759
Hello World	10	606.898	657.983	624.078	14.927
Function Router	10	2309.119	2454.885	2376.639	42.047
Concurrent Task	10	1008.266	1010.875	1009.584	0.868

Pull Request

Benchmark	Round	Min (ms)	Max (ms)	Mean (ms)	Standard Deviation
Baseline	10	321.969	352.228	337.511	9.754
Hello World	10	635.212	667.621	649.881	10.968
Function Router	10	2499.750	2716.299	2591.118	67.983
Concurrent Task	10	1009.240	1011.257	1010.260	0.699

[github-actions]

Size Comparison

examples	master (KB)	pull request (KB)	diff (KB)	diff (%)
async_clock	107.143	106.552	-0.591	-0.551%
boids	171.186	170.591	-0.595	-0.347%
communication_child_to_parent	91.269	90.667	-0.602	-0.659%
communication_grandchild_with_grandparent	105.624	105.033	-0.591	-0.559%
communication_grandparent_to_grandchild	101.460	100.870	-0.590	-0.581%
communication_parent_to_child	88.356	87.764	-0.593	-0.671%
contexts	108.138	107.541	-0.597	-0.552%
counter	86.297	85.706	-0.591	-0.685%
counter_functional	86.607	86.015	-0.593	-0.684%
dyn_create_destroy_apps	89.143	88.542	-0.601	-0.674%
file_upload	100.763	100.171	-0.592	-0.587%
function_memory_game	165.268	164.677	-0.591	-0.357%
function_router	349.594	348.978	-0.616	-0.176%
function_todomvc	160.225	159.631	-0.594	-0.371%
futures	225.341	224.753	-0.588	-0.261%
game_of_life	107.034	106.445	-0.589	-0.550%
immutable	182.008	181.230	-0.777	-0.427%
inner_html	82.714	82.121	-0.593	-0.717%
js_callback	112.285	111.688	-0.597	-0.531%
keyed_list	196.722	196.129	-0.593	-0.301%
mount_point	85.866	85.265	-0.602	-0.701%
nested_list	113.860	113.271	-0.589	-0.517%
node_refs	93.779	93.188	-0.592	-0.631%
password_strength	1549.746	1549.155	-0.591	-0.038%
portals	97.060	96.471	-0.589	-0.607%
router	319.659	319.081	-0.578	-0.181%
simple_ssr	151.872	151.284	-0.588	-0.387%
ssr_router	394.044	393.448	-0.596	-0.151%
suspense	109.481	108.882	-0.600	-0.548%
timer	89.165	88.571	-0.594	-0.666%
todomvc	141.659	141.066	-0.593	-0.418%
two_apps	86.917	86.326	-0.591	-0.680%
web_worker_fib	152.472	151.878	-0.594	-0.389%
webgl	85.421	84.823	-0.598	-0.700%

✅ None of the examples has changed their size significantly.