refactor: ♻️ rewrite admin CRUD interface for admins (#825)

* docs: 📝 general documentation + add FAQ page

* fix(frontend): 🐛 readd missing upload button to backups.

* feat(backend): ✨ add support for backup sizes to be displayed on frontend

* feat(backend): ✨ add backend for administrator CRUD of users

* add admin support for user

* refactor(frontend): ♻️ rewrite admin CRUD interface for admins

* fix build errors

Co-authored-by: hay-kot <hay-kot@pm.me>

frontend/api/admin/admin-users.ts

@@ -0,0 +1,39 @@
+import { BaseCRUDAPI } from "../_base";
+
+const prefix = "/api";
+
+interface UserCreate {
+  username: string;
+  fullName: string;
+  email: string;
+  admin: boolean;
+  group: string;
+  advanced: boolean;
+  canInvite: boolean;
+  canManage: boolean;
+  canOrganize: boolean;
+  password: string;
+}
+
+export interface UserToken {
+  name: string;
+  id: number;
+  createdAt: Date;
+}
+
+interface UserRead extends UserToken {
+  id: number;
+  groupId: number;
+  favoriteRecipes: any[];
+  tokens: UserToken[];
+}
+
+const routes = {
+  adminUsers: `${prefix}/admin/users`,
+  adminUsersId: (tag: string) => `${prefix}/admin/users/${tag}`,
+};
+
+export class AdminUsersApi extends BaseCRUDAPI<UserRead, UserCreate> {
+  baseRoute: string = routes.adminUsers;
+  itemRoute = routes.adminUsersId;
+}