chore: setup redirects from obsolete sites (sveltejs#538)

* chore: setup redirects from obsolete sites

create a vercel.json for each of them and redirect to the corresponding pages on svelte.dev

* add redirects

* update a few specific exercises

* remove permanent, until we're confident

* add catch-all

* rename

* fix

---------

Co-authored-by: Rich Harris <[email protected]>

Author: dummdidumm

apps/kit.svelte.dev/README.md

@@ -0,0 +1 @@
+kit.svelte.dev once was the home for SvelteKit, now its deployment just ensures that we redirect to the corresponding pages on svelte.dev

apps/kit.svelte.dev/vercel.json

@@ -0,0 +1,29 @@
+{
+	"$schema": "https://openapi.vercel.sh/vercel.json",
+	"redirects": [
+		{
+			"source": "/",
+			"destination": "https://svelte.dev/",
+			"permanent": true
+		},
+		{
+			"source": "/docs/modules",
+			"destination": "https://svelte.dev/docs/kit/@sveltejs-kit",
+			"permanent": true
+		},
+		{
+			"source": "/docs/types",
+			"destination": "https://svelte.dev/docs/kit/@sveltejs-kit",
+			"permanent": true
+		},
+		{
+			"source": "/docs/(.*)",
+			"destination": "https://svelte.dev/docs/kit/$1",
+			"permanent": true
+		},
+		{
+			"source": "/(.*)",
+			"destination": "https://svelte.dev"
+		}
+	]
+}

apps/learn.svelte.dev/README.md

@@ -0,0 +1 @@
+learn.svelte.dev once was the home for the Svelte(Kit) tutorial, now its deployment just ensures that we redirect to the corresponding pages on svelte.dev