add kirby-loop plugin with French translations

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

site/plugins/loop/frontend/package.json

@@ -0,0 +1,27 @@
+{
+	"name": "loop-frontend",
+	"private": true,
+	"version": "0.0.0",
+	"type": "module",
+	"scripts": {
+		"dev": "vite",
+		"build": "vite build",
+		"preview": "vite preview",
+		"check": "svelte-check --tsconfig ./tsconfig.app.json && tsc -p tsconfig.node.json"
+	},
+	"devDependencies": {
+		"@sveltejs/vite-plugin-svelte": "^5.0.3",
+		"@tsconfig/svelte": "^5.0.4",
+		"@types/node": "^22.13.10",
+		"browserslist": "^4.24.4",
+		"lightningcss": "^1.29.3",
+		"svelte": "^5.20.2",
+		"svelte-check": "^4.1.4",
+		"terser": "^5.39.0",
+		"typescript": "~5.7.2",
+		"vite": "^6.2.0",
+		"vite-plugin-css-injected-by-js": "^3.5.2",
+		"vite-plugin-ejs": "^1.7.0",
+		"vitest": "^3.0.9"
+	}
+}