chore: rename required tasks to prerequisite tasks

[manuel3108]

Description

Checklist

• Update snapshots (if applicable)
• Add a changeset (if applicable)
• Allow maintainers to edit this PR
• I care about what I'm doing, no matter the tool I use (Notepad, Sublime, VSCode, AI...)

[changeset-bot]

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Latest commit: 0fffd6b

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[svelte-docs-bot]

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