chore: frontend testing setup (#1739)

* add vitest

* initialize lib w/ tests

* move to dev dep

* run tests in CI

* update file names

* move api folder to lib

* move api and api types to same folder

* update generator outpath

* rm husky

* i guess i _did_ need those types

* reorg types

* extract validators into testable components

* (WIP) start composable testing

* fix import type

* fix linter complaint

* simplify icon type def

* fix linter errors (maybe?)

* rename client file for sorting

frontend/lib/api/user/user-registration.ts

@@ -0,0 +1,16 @@
+import { BaseAPI } from "../base/base-clients";
+import { CreateUserRegistration } from "~/lib/api/types/user";
+
+const prefix = "/api";
+
+const routes = {
+  register: `${prefix}/users/register`,
+};
+
+export class RegisterAPI extends BaseAPI {
+  /** Returns a list of available .zip files for import into Mealie.
+   */
+  async register(payload: CreateUserRegistration) {
+    return await this.requests.post<any>(routes.register, payload);
+  }
+}