DOC-2480: Port to 6 Docs - Update `svelte-quick-start.adoc` to use Vite v5

[FarzadHayat]

Ticket: DOC-2480

Site: Svelte Cloud Site: Svelte Package Manager Site: Svelte Zip

Changes:

• Changes are identical to https://github.com/tinymce/tinymce-docs/pull/3388. Please write any suggested changes on that PR and they will be cherry-picked to here.

Pre-checks:

• [x] Branch prefixed with feature/<version>/, hotfix/<version>/, staging/<version>/, or release/<version>/.
• [-] modules/ROOT/nav.adoc has been updated (if applicable).
• [-] Included a release note entry for any New product features.
• [-] If this is a minor release, updated productminorversion in antora.yml and added new supported versions entry in modules/ROOT/partials/misc/supported-versions.adoc.

Review:

• [x] Documentation Team Lead has reviewed