feat: add new dependencies to package.json

This commit adds new dependencies to package.json and updates the
pnpm-lock.yaml file accordingly. The new dependencies include
"@sveltejs/kit", "camelcase-keys", "unconfig", and "vite". These
dependencies are necessary for the new features being added to the
project.

Author: ryoppippi

package.json

@@ -17,13 +17,17 @@
 	"devDependencies": {
 		"@antfu/ni": "^0.22.0",
 		"@ryoppippi/eslint-config": "npm:@jsr/ryoppippi__eslint-config",
+		"@sveltejs/kit": "^2.5.20",
+		"camelcase-keys": "^9.1.3",
 		"eslint": "^9.8.0",
 		"eslint-plugin-format": "^0.1.2",
 		"eslint-plugin-svelte": "^2.43.0",
 		"lightningcss": "^1.25.1",
 		"mkdist": "^1.5.4",
 		"svelte": "5.0.0-next.210",
 		"typescript": "^5.5.4",
+		"unconfig": "^0.5.5",
+		"vite": "^5.3.5",
 		"vitest": "^2.0.5"
 	}
 }