Remove a whole bunch of polyfills

[keithamus]

BREAKING CHANGE: This removes a lot of polyfills, and pushes our minimum base support up.

It's been around 6 months since we last dropped some polyfills. Most of these have dropped below 0.3% explicitly unsupported with the exception being Array#findLast/Array#findLastIndex which is at 0.443%.

This also adds some more stuff to baseline, and drops a bunch of things that are very well supported in the browsers we see; as they're mostly redundant with the new checks in place. The newest feature in baseline in HTMLDialogElement (0.147% unsupported), replacing our old check for HTMLDetailsElement which is unsupported in 0.016%:

HTMLDialogElement

Browser	Supported Since	Latest Version	% Supported	% Unsupported
chrome	37	121	69.574	0.003
edge	79	120	9.811	0.003
firefox	98	122	12.716	0.046
firefox_android	98	122	0.334	0.000
ie	Not Supported		0.000	0.002
opera	24	105	1.627	0.000
safari	15.4	17.3	3.966	0.067
safari_ios	15.4	17.3	1.311	0.024
webview_android	37	121	0.004	0.002
Total:			99.343	0.147

abort() static method

Browser	Supported Since	Latest Version	% Supported	% Unsupported
chrome	93	121	69.446	0.131
edge	93	120	9.798	0.017
firefox	88	122	12.749	0.013
firefox_android	88	122	0.334	0.000
ie	Not Supported		0.000	0.002
opera	79	105	1.626	0.001
safari	15	17.3	3.998	0.034
safari_ios	15	17.3	1.320	0.014
webview_android	93	121	0.004	0.002
Total:			99.275	0.214

Array#findlast

Browser	Supported Since	Latest Version	% Supported	% Unsupported
chrome	97	121	69.380	0.197
edge	97	120	9.797	0.018
firefox	104	122	12.642	0.120
firefox_android	104	122	0.333	0.001
ie	Not Supported		0.000	0.002
opera	83	105	1.616	0.011
safari	15.4	17.3	3.966	0.067
safari_ios	15.4	17.3	1.311	0.024
webview_android	97	121	0.004	0.002
Total:			99.049	0.442

Array#findLastIndex

Browser	Supported Since	Latest Version	% Supported	% Unsupported
chrome	97	121	69.380	0.197
edge	97	120	9.797	0.018
firefox	104	122	12.642	0.120
firefox_android	104	122	0.333	0.001
ie	Not Supported		0.000	0.002
opera	83	105	1.616	0.011
safari	15.4	17.3	3.966	0.067
safari_ios	15.4	17.3	1.311	0.024
webview_android	97	121	0.004	0.002
Total:			99.049	0.442

Array#at

Browser	Supported Since	Latest Version	% Supported	% Unsupported
chrome	92	121	69.456	0.122
edge	92	120	9.809	0.006
firefox	90	122	12.742	0.020
firefox_android	90	122	0.334	0.000
ie	Not Supported		0.000	0.002
opera	78	105	1.626	0.000
safari	15.4	17.3	3.966	0.067
safari_ios	15.4	17.3	1.311	0.024
webview_android	92	121	0.004	0.002
Total:			99.248	0.243

String#at

Browser	Supported Since	Latest Version	% Supported	% Unsupported
chrome	92	121	69.456	0.122
edge	92	120	9.809	0.006
firefox	90	122	12.742	0.020
firefox_android	90	122	0.334	0.000
ie	Not Supported		0.000	0.002
opera	78	105	1.626	0.000
safari	15.4	17.3	3.966	0.067
safari_ios	15.4	17.3	1.311	0.024
webview_android	92	121	0.004	0.002
Total:			99.248	0.243

randomUUID()

Browser	Supported Since	Latest Version	% Supported	% Unsupported
chrome	92	121	69.456	0.122
edge	92	120	9.809	0.006
firefox	95	122	12.722	0.040
firefox_android	95	122	0.334	0.000
ie	Not Supported		0.000	0.002
opera	78	105	1.626	0.000
safari	15.4	17.3	3.966	0.067
safari_ios	15.4	17.3	1.311	0.024
webview_android	92	121	0.004	0.002
Total:			99.228	0.263

options.signal parameter

Browser	Supported Since	Latest Version	% Supported	% Unsupported
chrome	90	121	69.482	0.096
edge	90	120	9.810	0.005
firefox	86	122	12.750	0.012
firefox_android	86	122	0.334	0.000
ie	Not Supported		0.000	0.002
opera	76	105	1.626	0.000
safari	15	17.3	3.998	0.034
safari_ios	15	17.3	1.320	0.014
webview_android	90	121	0.004	0.002
Total:			99.324	0.165

requestSubmit()

Browser	Supported Since	Latest Version	% Supported	% Unsupported
chrome	76	121	69.561	0.017
edge	79	120	9.811	0.003
firefox	75	122	12.759	0.003
firefox_android	79	122	0.334	0.000
ie	Not Supported		0.000	0.002
opera	63	105	1.627	0.000
safari	16	17.3	3.843	0.190
safari_ios	16	17.3	1.255	0.080
webview_android	76	121	0.004	0.002
Total:			99.194	0.297

Object.hasOwn

Browser	Supported Since	Latest Version	% Supported	% Unsupported
chrome	93	121	69.446	0.131
edge	93	120	9.798	0.017
firefox	92	122	12.728	0.035
firefox_android	92	122	0.334	0.000
ie	Not Supported		0.000	0.002
opera	79	105	1.626	0.001
safari	15.4	17.3	3.966	0.067
safari_ios	15.4	17.3	1.311	0.024
webview_android	93	121	0.004	0.002
Total:			99.213	0.279

[mattcosta7]

seems reasonable to drop these to me