Update SvelteKit to Latest

[aeither]

Make scaffold compatible with latest routes breaking changes.
__ to +page.svelte
$app/env to $app/environment

[silvestrevivo]

@aeither thank you so much for this update. I think we should align the package.json with the official scaffold from SvelteKit ( scripts and packages versions ).

Another things like the alias, should be moved to the svelte.config.js file , look at the last updated documentation https://kit.svelte.dev/docs/configuration#alias

After that, please run npm run check to make sure there are no TS errors.

Thanks so much!!!!

[silvestrevivo]

@aeither please, can you update the package.json properly and aligned to the oficial scaffold? Please, look at the scrips and then at the packages versions. Thanks!!!

[aeither]

@silvestrevivo, I explained it in this line with link to the source. prettier-plugin-svelte is bundled in prettier-plugin-tailwindcss.
The dapp-scaffold-svelte comes with tailwindcss but users can't format classes. If someone want to format both svelte and tailwind, it can be done with prettier-plugin-tailwindcss. with svelte plugin you only format svelte.

prepare is redundant, the terminal asked me to remove it.

The versions are changed back and I also run npm run check which passed.

[silvestrevivo]

@aeither thank you so much for the explanation. I don't know why your text is not visible for me. Anyhow, I understand it much better. What I mean with the scripts from the package.json file, is that the "package": "svelte-kit package", it is removed in the last version of the scaffold.

The rest of the PR looks pretty great, thanks so much!!!!!