Add skill removal functionality and enhance UI components

- Integrated onRemoveSkill functionality in SkillEvaluation, SkillSelector, and SkillEvaluationCard components for better skill management.
- Updated UI to improve user experience when removing skills, including tooltip descriptions and styling adjustments.
- Added new skills to backend, devops, frontend, and mobile JSON files for comprehensive skill coverage.

public/data/skills/design.json

@@ -0,0 +1,96 @@
+{
+  "category": "Design",
+  "icon": "palette",
+  "skills": [
+    {
+      "id": "figma",
+      "name": "Figma",
+      "description": "Outil de design d'interface collaboratif",
+      "links": [
+        "https://www.figma.com/",
+        "https://help.figma.com/"
+      ]
+    },
+    {
+      "id": "sketch",
+      "name": "Sketch",
+      "description": "Outil de design d'interface pour macOS",
+      "links": [
+        "https://www.sketch.com/",
+        "https://www.sketch.com/docs/"
+      ]
+    },
+    {
+      "id": "adobe-xd",
+      "name": "Adobe XD",
+      "description": "Outil de design et prototypage d'Adobe",
+      "links": [
+        "https://www.adobe.com/products/xd.html",
+        "https://helpx.adobe.com/xd/"
+      ]
+    },
+    {
+      "id": "ux-ui",
+      "name": "UX/UI Design",
+      "description": "Conception d'expérience et d'interface utilisateur",
+      "links": [
+        "https://www.nngroup.com/",
+        "https://material.io/design/"
+      ]
+    },
+    {
+      "id": "design-system",
+      "name": "Design System",
+      "description": "Systèmes de design et composants réutilisables",
+      "links": [
+        "https://designsystemsrepo.com/",
+        "https://www.designbetter.co/design-systems-handbook"
+      ]
+    },
+    {
+      "id": "prototyping",
+      "name": "Prototypage",
+      "description": "Création de prototypes interactifs",
+      "links": [
+        "https://www.prototypr.io/",
+        "https://www.invisionapp.com/"
+      ]
+    },
+    {
+      "id": "user-research",
+      "name": "Recherche utilisateur",
+      "description": "Méthodologies de recherche UX",
+      "links": [
+        "https://www.nngroup.com/articles/",
+        "https://www.usability.gov/"
+      ]
+    },
+    {
+      "id": "accessibility",
+      "name": "Accessibilité",
+      "description": "Design accessible et inclusive",
+      "links": [
+        "https://www.w3.org/WAI/",
+        "https://webaim.org/"
+      ]
+    },
+    {
+      "id": "responsive-design",
+      "name": "Design Responsive",
+      "description": "Conception adaptative multi-dispositifs",
+      "links": [
+        "https://developers.google.com/web/fundamentals/design-and-ux/responsive",
+        "https://responsivedesign.is/"
+      ]
+    },
+    {
+      "id": "motion-design",
+      "name": "Motion Design",
+      "description": "Animation et transitions d'interface",
+      "links": [
+        "https://material.io/design/motion/",
+        "https://www.framer.com/"
+      ]
+    }
+  ]
+}