Conform more of the codebase to strictNullChecks
(#10602)
* Conform more of the codebase to `strictNullChecks` * Conform more of the codebase to `strictNullChecks` * Fix types
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26 changed files with 79 additions and 49 deletions
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@ -293,7 +293,7 @@ interface ISectionHeaderProps {
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}
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function SectionHeader({ className, children }: PropsWithChildren<ISectionHeaderProps>): JSX.Element {
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const ref = useRef<HTMLHeadingElement>();
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const ref = useRef<HTMLHeadingElement>(null);
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const [onFocus] = useRovingTabIndex(ref);
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return (
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