Creating for AE "Sponsorships". Update file timestamps and remove unused files. Also switched to Svelte with Vite.

tsconfig.json

@@ -1,6 +1,20 @@
 {
   "extends": "@tsconfig/svelte/tsconfig.json",
-
-  "include": ["src/**/*"],
-  "exclude": ["node_modules/*", "__sapper__/*", "public/*"]
-}
+  "compilerOptions": {
+    "target": "ESNext",
+    "useDefineForClassFields": true,
+    "module": "ESNext",
+    "resolveJsonModule": true,
+    /**
+     * Typecheck JS in `.svelte` and `.js` files by default.
+     * Disable checkJs if you'd like to use dynamic types in JS.
+     * Note that setting allowJs false does not prevent the use
+     * of JS in `.svelte` files.
+     */
+    "allowJs": true,
+    "checkJs": true,
+    "isolatedModules": true
+  },
+  "include": ["src/**/*.d.ts", "src/**/*.ts", "src/**/*.js", "src/**/*.svelte"],
+  "references": [{ "path": "./tsconfig.node.json" }]
+}