Maintenance Update: Svelte 5

Changelog:

• Migrate to Svelte 5 ✨
• Fix missing Favicon 🐛🛠️
• Fix fullscreen Infobar 🐛🛠️
• Fix page title 🐛🛠️

Note:
Due to changes in vite/svelte (needs investigation) the *SSR-Version you can download here only works for "localhost:7069"
If you want another host/port config please set environment at build time!