fix(core): improve ATFocus, Combobox, Internals, Listbox, and RovingT… #10786

Job	Run time
Unit Tests (Web Test Runner)	1m 43s
Lint files	40s
Compile project (24)	58s
SSR Tests (Playwright)	1m 35s
Compile project (22)	1m 10s
Verify that build runs on Windows	1m 38s
Publish Playwright Report	42s
Validate successful build on main	3s
	8m 29s

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