refactor: use codemirror npm package (#54)

* refactor: use codemirror npm package

* fix: update to latest codemirror@v5 styling

Author: tristan-f-r

.gitattributes

@@ -0,0 +1 @@
+* text=auto eol=lf

package.json

@@ -14,15 +14,17 @@
   "devDependencies": {
     "@parcel/config-default": "^2.9.3",
     "@parcel/transformer-raw": "^2.9.3",
+    "@types/codemirror": "v5.60.9",
     "@typescript-eslint/eslint-plugin": "^6.2.0",
     "@typescript-eslint/parser": "^6.2.0",
+    "codemirror": "^5.65.15",
     "eslint": "^8.46.0",
     "lz-string": "^1.5.0",
     "parcel": "^2.9.3",
     "parcel-reporter-static-files-copy": "^1.5.2",
     "prettier": "3.0.0",
     "sharp": "^0.31.1",
     "split.js": "^1.6.5",
-    "typescript": "^5.1.6"
+    "typescript": "^5.2.2"
   }
 }