Reduce react warnings

[nicodh]

Reduces the number of warnings from 37 to 16. Many of the warnings seem inappropriate so just adding a line to disable the rook was often used.

Can be best reviewed commit by commit.

[nicodh]

@WofWca we have 7 warnings just from the ChatlistContext file. Maybe you can have a look how to fix/avoid them?

[WofWca]

Although some of these can probably be fixed instead of simply being ignored, I think it's fine to ignore them if there is no obvious problem that they're pointing out. The fact that a warning is ignored is also sort of a warning.

[WofWca]

Utilizing useState over useMemo for currentTime seems to be just a hack to suppress the warning here or am I wrong? Let's better suppress it explicitly.

Suggested change

	const [currentTime] = useState(() => Date.now())
	// if older than one week we don't need to update timestamps
	if (props.timestamp < Date.now() - relativeTimeThreshold) {
	const isOld = useMemo(
	() => props.timestamp < currentTime - relativeTimeThreshold,
	[props.timestamp, currentTime]
	)
	// if older than one week we don't need to update timestamps
	const isOld = useMemo(
	// eslint-disable-next-line react-hooks/purity
	() => props.timestamp < Date.now() - relativeTimeThreshold,
	[props.timestamp]
	)

[nicodh]

Both variants seem fine to me

[WofWca]

The misuse of useState is not nice, but otherwise looks good (see my previous review).