Incorrect search result links

[eltigerchino]

When searching for "svelte:component" such as https://svelte.dev/search?q=svelte%3Acomponent , the links to the Misc page incorrectly link to https://svelte.dev/docs/svelte/v5-migration-guide#is-no-longer-necessary when it should be https://svelte.dev/docs/svelte/v5-migration-guide#svelte:component-is-no-longer-necessary . Notably, the anchor has omitted "svelte:component" from the link.

- https://svelte.dev/docs/svelte/v5-migration-guide#is-no-longer-necessary
+ https://svelte.dev/docs/svelte/v5-migration-guide#svelte:component-is-no-longer-necessary

[zqianem]

Didn't quite get to how to fix this, but the root cause is that slugify is being called on input like `<svelte:component>` is no longer necessary in https://github.com/sveltejs/svelte.dev/blob/main/apps/svelte.dev/src/routes/content.json/%2Bserver.ts when really, it was designed to be called on input like <code>&lt;svelte:component&gt;</code> is no longer necessary, such as when the actual hrefs are generated in https://github.com/sveltejs/svelte.dev/blob/main/packages/site-kit/src/lib/markdown/renderer.ts.