Refactor code structure for improved readability and maintainability

package-lock.json

@@ -15,7 +15,9 @@
       "devDependencies": {
         "@milkdown/crepe": "^7.20.0",
         "clean-css-cli": "^5.6.3",
-        "esbuild": "^0.28.0"
+        "dictionary-en-us": "^2.2.1",
+        "esbuild": "^0.28.0",
+        "nspell": "^2.1.5"
       }
     },
     "node_modules/@babel/helper-string-parser": {
@@ -2493,6 +2495,17 @@
         "url": "https://github.com/sponsors/wooorm"
       }
     },
+    "node_modules/dictionary-en-us": {
+      "version": "2.2.1",
+      "resolved": "https://registry.npmjs.org/dictionary-en-us/-/dictionary-en-us-2.2.1.tgz",
+      "integrity": "sha512-Z8mycV0ywTfjbUTi0JZfQHqBZhu4CYFtpf7KluSGpt3xHpFlal2S/hiK50tlPynOtR5K3pG5wCradnz1yxwOHA==",
+      "dev": true,
+      "license": "(MIT AND BSD)",
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/wooorm"
+      }
+    },
     "node_modules/dompurify": {
       "version": "3.4.2",
       "resolved": "https://registry.npmjs.org/dompurify/-/dompurify-3.4.2.tgz",
@@ -2766,6 +2779,30 @@
         "node": ">=8"
       }
     },
+    "node_modules/is-buffer": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/is-buffer/-/is-buffer-2.0.5.tgz",
+      "integrity": "sha512-i2R6zNFDwgEHJyQUtJEk0XFi1i0dPFn/oqjK3/vPCcDeJvW5NQ83V8QbicfF1SupOaB0h8ntgBC2YiE7dfyctQ==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ],
+      "license": "MIT",
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/is-extglob": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/is-extglob/-/is-extglob-2.1.1.tgz",
@@ -3830,6 +3867,16 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/nspell": {
+      "version": "2.1.5",
+      "resolved": "https://registry.npmjs.org/nspell/-/nspell-2.1.5.tgz",
+      "integrity": "sha512-PSStyugKMiD9mHmqI/CR5xXrSIGejUXPlo88FBRq5Og1kO5QwQ5Ilu8D8O5I/SHpoS+mibpw6uKA8rd3vXd2Sg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "is-buffer": "^2.0.0"
+      }
+    },
     "node_modules/omggif": {
       "version": "1.0.10",
       "resolved": "https://registry.npmjs.org/omggif/-/omggif-1.0.10.tgz",