updated gui

package.json

@@ -5,12 +5,20 @@
     "@fontsource/noto-sans-hebrew": "^5.2.8",
     "@fontsource/noto-sans-phoenician": "^5.2.6",
     "@fontsource/noto-serif": "^5.2.9",
+    "@toast-ui/calendar": "^2.1.3",
     "astronomy-engine": "^2.1.19",
     "suncalc": "^1.9.0"
   },
   "devDependencies": {
     "http-server": "^14.1.1"
   },
+  "overrides": {
+    "isomorphic-dompurify": "3.0.0",
+    "dompurify": "3.3.2",
+    "jsdom": "28.1.0",
+    "http-proxy-agent": "7.0.2",
+    "@tootallnate/once": "3.0.1"
+  },
   "scripts": {
     "start": "npx http-server . -o index.html",
     "dev": "npm run start"