refactor(app-aco): introduce Folders features

[leopuleo]

Changes

This PR introduces a significant structural reorganization of the app-aco package by refactoring folders logic into a new feature-based architecture. The goal is to improve modularity, maintainability, and scalability by moving away from React Context and feature hooks (useFolders) in favor of self-contained feature modules.

1. Introduction of Feature-Based Architecture

• Each feature is now self-contained, exposing a single-purpose hook (e.g., useCreateFolder()).
• Every hook corresponds to a specific method (createFolder, etc.), making it explicit and easy to use.

2. New Feature Structure

The feature modules follow a clean separation of concerns:

createFolder/   
├── CreateFolder.test.ts                   # Unit tests for the feature logic  
├── CreateFolder.ts                        # Main entry point for the feature  
├── CreateFolderGqlGateway.ts              # GraphQL gateway implementation for communicating with an API  
├── CreateFolderRepository.ts              # Repository for handling feature data persistence  
├── CreateFolderUseCase.ts                 # Business logic for executing the feature  
├── CreateFolderUseCaseWithLoading.ts      # Decoration of the use case with loading state  
├── FolderDto.ts                           # DTO (Data Transfer Object) for the feature  
├── FolderGqlDto.ts                        # DTO specifically for GraphQL feature data  
├── ICreateFolderGateway.ts                # Interface for different API gateways (GraphQL, etc.)  
├── ICreateFolderRepository.ts             # Interface for the repository layer  
├── ICreateFolderUseCase.ts                # Interface for the feature use case  
├── index.ts                               # Entry point exporting all related modules  
└── useCreateFolder.ts                     # React hook for managing the feature logic  

3. Backward Compatibility

• The existing useFolders hook and its methods remain available but are now deprecated.
• All references to the generic useFolders hook in other packages have been replaced with their respective feature-specific hooks (e.g., useCreateFolder()).

How Has This Been Tested?

Jest + manually

[leopuleo]

We're moving forward with #4513 instead!