chore: update vitest to v3 (and update config) & vite to v6

Author: xeho91

package.json

@@ -77,9 +77,9 @@
     "@tsconfig/svelte": "^5.0.4",
     "@types/estree": "^1.0.6",
     "@types/node": "^20.14.9",
-    "@vitest/browser": "2.1.4",
-    "@vitest/coverage-v8": "2.1.4",
-    "@vitest/ui": "^2.1.4",
+    "@vitest/browser": "^3.1.3",
+    "@vitest/coverage-v8": "^3.1.3",
+    "@vitest/ui": "^3.1.3",
     "auto": "^11.1.6",
     "chromatic": "^11.28.2",
     "concurrently": "^8.2.2",
@@ -100,10 +100,10 @@
     "typescript": "^5.5.2",
     "typescript-eslint": "^8.30.1",
     "typescript-svelte-plugin": "^0.3.42",
-    "vite": "^5.4.11",
+    "vite": "^6.3.5",
     "vite-plugin-inspect": "^0.8.7",
     "vite-plugin-virtual": "^0.3.0",
-    "vitest": "^2.1.4"
+    "vitest": "^3.1.3"
   },
   "peerDependencies": {
     "@storybook/svelte": "^0.0.0-0 || ^8.2.0 || ^9.0.0-0",