Fixing Svelte-check errors

front/src/ambient.d.ts

@@ -0,0 +1,38 @@
+/**
+ * These declarations tell TypeScript that we allow import of images, e.g.
+ * ```
+ <script lang='ts'>
+ import successkid from 'images/successkid.jpg';
+ </script>
+ <img src="{successkid}">
+ ```
+ */
+declare module "*.gif" {
+    const value: string;
+    export = value;
+}
+
+declare module "*.jpg" {
+    const value: string;
+    export = value;
+}
+
+declare module "*.jpeg" {
+    const value: string;
+    export = value;
+}
+
+declare module "*.png" {
+    const value: string;
+    export = value;
+}
+
+declare module "*.svg" {
+    const value: string;
+    export = value;
+}
+
+declare module "*.webp" {
+    const value: string;
+    export = value;
+}