fix(js_formatter): add parens to match Prettier

[Conaclos]

Summary

Add parentheses for:

• function types with an asserts return type inside a conditional type.
• assertion type inside a shift-left operation

Test Plan

I updated the snapshots.

[github-actions]

Parser conformance results on

js/262

Test result	main count	This PR count	Difference
Total	48452	48452	0
Passed	47254	47254	0
Failed	1198	1198	0
Panics	0	0	0
Coverage	97.53%	97.53%	0.00%

jsx/babel

Test result	main count	This PR count	Difference
Total	40	40	0
Passed	37	37	0
Failed	3	3	0
Panics	0	0	0
Coverage	92.50%	92.50%	0.00%

symbols/microsoft

Test result	main count	This PR count	Difference
Total	6544	6544	0
Passed	2197	2197	0
Failed	4347	4347	0
Panics	0	0	0
Coverage	33.57%	33.57%	0.00%

ts/babel

Test result	main count	This PR count	Difference
Total	670	670	0
Passed	598	598	0
Failed	72	72	0
Panics	0	0	0
Coverage	89.25%	89.25%	0.00%

ts/microsoft

Test result	main count	This PR count	Difference
Total	18328	18328	0
Passed	14020	14020	0
Failed	4308	4308	0
Panics	0	0	0
Coverage	76.49%	76.49%	0.00%