feat(create): provide svelte config in vite.config.js during create

[manuel3108]

Relates #1111
(let's try and create multiple small prs)

Description

I absolutely do not understand why we had so many svelte.config.js's flying around, especially since they were all close to identical. Therefore removed most of them. Since everything in the vite.config is js based, there is no need to bother about .ts extensions during create.

Todos:

• playground test reading vite config, needs @sveltejs/load-config
• snapshots
• changeset

Sources:

• Importing Svelte(Kit) settings from the Vite config eslint-plugin-svelte#1550
• feat: support reading Svelte config from vite.config.js/ts language-tools#3031
• feat: support passing Svelte(Kit) config via Vite plugin kit#15944

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]

⚠️ No Changeset found

Latest commit: 02e5095

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