Wrap the "Donate" button text update logic in a `useEffect()` hook

[cassiano]

Increasing Access

The "Donate" button, once translated to other languages, may help in the funding process.

Feature enhancement details

Following up on #3664, and even though the expected behavior was in fact achieved, I have noticed just now that my logic was placed outside a useEffect() hook, which is conceptually wrong, given the fact that manipulating the DOM is considered a side-effect. This needs to be fixed.

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