Get rid of eslint, pretier, playwrigth and npm
Switched to "svelte-adapter-deno" (from the sveltekit one, which is deprecated now)
transformed some <i \> to <i></i> because of warnings
NOTE: the default port switched to 3000, so we now need to set the POST env variable during runtime
According to https://github.com/AndreasNasman/.config/issues/87#issuecomment-2555399541:
 > I had to leave this package.json file for things to work correctly:
 > Leaving out type": "module" causes this error when adding a <style tag to a .svelte file:
 > Following the link and changing vite.config.ts to vite.config.mts (there is no "type": "module" in deno.jsonc) only changes the error message:
replaced all packages with the most recent onces