feat: add mobile application structure with emotion picker and API integration

- Added favicon and icon assets for the mobile app.
- Implemented EmotionPicker component for selecting emotions with child options.
- Created hooks for fetching emotions, feeds, and rapport data.
- Established API service for handling requests and authentication.
- Integrated Zustand for state management of user authentication.
- Defined color palette for the application.
- Set up TypeScript types for various entities including User, Emotion, and Feed.
- Configured Babel and TypeScript for the mobile project.
- Added package.json with necessary dependencies for Expo and React Native.

backend/app/Http/Requests/UpdatePasswordRequest.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace App\Http\Requests;
+
+use Illuminate\Foundation\Http\FormRequest;
+
+class UpdatePasswordRequest extends FormRequest
+{
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    public function rules(): array
+    {
+        return [
+            'ancien_mot_de_passe' => 'required|string',
+            'password' => 'required|string|min:8|confirmed',
+        ];
+    }
+
+    public function messages(): array
+    {
+        return [
+            'ancien_mot_de_passe.required' => 'L\'ancien mot de passe est obligatoire.',
+            'password.required' => 'Le nouveau mot de passe est obligatoire.',
+            'password.min' => 'Le nouveau mot de passe doit contenir au moins 8 caractères.',
+            'password.confirmed' => 'La confirmation du mot de passe ne correspond pas.',
+        ];
+    }
+}