refactor: extract Icons and InlineFormActions UI components

- Add Icons.tsx: IconEdit, IconTrash, IconDuplicate, IconPlus, IconCheck, IconClose
- Add InlineFormActions.tsx: unified Annuler/Ajouter-Enregistrer button pair
- Replace inline SVGs in SwotCard, YearReviewCard, WeeklyCheckInCard, SwotQuadrant,
  YearReviewSection, WeeklyCheckInSection, EditableTitle, Modal, GifMoodCard

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/components/gif-mood/GifMoodCard.tsx

@@ -2,6 +2,7 @@
 
 import { memo, useState, useTransition } from 'react';
 import { updateGifMoodItem, deleteGifMoodItem } from '@/actions/gif-mood';
+import { IconClose } from '@/components/ui';
 
 interface GifMoodCardProps {
   sessionId: string;
@@ -83,9 +84,7 @@ export const GifMoodCard = memo(function GifMoodCard({
           className="absolute top-2 right-2 p-1.5 rounded-full bg-black/50 text-white opacity-0 group-hover:opacity-100 hover:bg-black/70 transition-all backdrop-blur-sm"
           title="Supprimer ce GIF"
         >
-          <svg className="w-3 h-3" fill="none" viewBox="0 0 24 24" stroke="currentColor">
-            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2.5} d="M6 18L18 6M6 6l12 12" />
-          </svg>
+          <IconClose className="w-3 h-3" />
         </button>
       )}