BREAK: Migrate to Svelte 5

[mazipan]

Closes

Description

Migrate to Svelte 5

Current Tasks

• Running migration script npx sv migrate svelte-5
• Install all new deps
• Manual fix for failed migration
  • Temporary replace $$props.class to _$$props.class
  • Move to class to $props with renaming the props name, example: let { class: clazz }: Props = $props();
  • Fix PageData typings
• Test run dev in local
• Test run build in local