Refactor and add many features

package.json

@@ -14,6 +14,7 @@
     "lint": "eslint . --fix"
   },
   "devDependencies": {
+    "@fortawesome/free-solid-svg-icons": "^6.4.0",
     "@fullhuman/postcss-purgecss": "^5.0.0",
     "@microsoft/fetch-event-source": "^2.0.1",
     "@rollup/plugin-dsv": "^3.0.2",
@@ -28,16 +29,20 @@
     "eslint-config-standard-with-typescript": "^34.0.1",
     "eslint-plugin-svelte3": "^4.0.0",
     "flourite": "^1.2.3",
+    "gpt-tokenizer": "^2.0.0",
     "postcss": "^8.4.22",
     "sass": "^1.61.0",
+    "streamed-chatgpt-api": "^1.0.7",
     "svelte": "^3.58.0",
     "svelte-check": "^3.2.0",
+    "svelte-fa": "^3.0.3",
     "svelte-highlight": "^7.2.1",
     "svelte-local-storage-store": "^0.4.0",
     "svelte-markdown": "^0.2.3",
     "svelte-spa-router": "^3.3.0",
     "tslib": "^2.5.0",
     "typescript": "^5.0.4",
+    "uuid": "^9.0.0",
     "vite": "^4.1.0"
   }
 }