full upgrade (#31)

* ✨ chore: update CI workflow to include testing and multi-arch build (#29)

* ✨ chore: remove unused dependencies from package-lock.json and updated to a better local dev environment (#30)

* ✨ test: add unit tests

* ✨ test: add unit tests for whole project

* ✨ feat: add whatwg-fetch for improved fetch support

* ✨ chore: update Node.js version to 22 in workflow

* ✨ refactor: update types and improve email handling tests

* ✨ refactor: remove unused imports

* ✨ fix: normalize image name to lowercase in workflows

* ✨ fix: ensure Docker image names are consistently lowercase

* ✨ chore: update

* ✨ chore: update base URL to use secret variable

* ✨ chore: update to login to ghcr

* ✨ fix: add missing 'fi' to close if statement in workflow

app/__tests__/__mocks__/mock-fetch-img.ts

@@ -0,0 +1,12 @@
+export function mockFetch(data: Record<string, unknown>) {
+  return jest.fn().mockImplementation(() =>
+    Promise.resolve({
+      ok: true,
+      headers: {
+        get: jest.fn().mockReturnValue('image/jpeg'),
+      },
+      arrayBuffer: jest.fn().mockResolvedValue(new ArrayBuffer(8)),
+      json: () => data,
+    }),
+  );
+}