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.

frontend/src/app/(admin)/admin/emotions/page.tsx

@@ -1,7 +1,7 @@
 'use client';
 
 import { useEffect, useState } from 'react';
-import { Plus, Edit2, Trash2, Eye, EyeOff } from 'lucide-react';
+import { Plus, Edit2, Trash2 } from 'lucide-react';
 import api from '@/lib/api';
 import type { Emotion } from '@/types';
 import Card from '@/components/ui/Card';
@@ -81,8 +81,9 @@ export default function AdminEmotionsPage() {
       }
       setModalOpen(false);
       await fetchEmotions();
-    } catch (err: any) {
-      toast.error(err.response?.data?.message || 'Erreur');
+    } catch (err: unknown) {
+      const axiosError = err as import('axios').AxiosError<{ message?: string }>;
+      toast.error(axiosError.response?.data?.message || 'Erreur');
     } finally {
       setFormLoading(false);
     }