useTitle should restore the title on beforeUnmount/unmount

[segevfiner]

Clear and concise description of the problem

If you navigate away from a component that used useTitle, the title it has set will remain, which makes this composable not very useful as is as a means of dynamically setting the title like you could do with @vueuse/head or unhead.

Suggested solution

useTitle should restore the title on onBeforeUnmount or similar.

Alternative

Not using it.

Additional context

No response

Validations

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