feat: dropbox sync for filesystem content

package.json

@@ -30,6 +30,7 @@
     "@testing-library/jest-dom": "^6.9.1",
     "@testing-library/react": "^16.3.2",
     "@testing-library/user-event": "^14.6.1",
+    "@types/chokidar": "^1.7.5",
     "@types/node": "^20.10.0",
     "@types/react": "^18.2.0",
     "@types/react-dom": "^18.2.0",
@@ -62,8 +63,10 @@
     "@tiptap/react": "^3.19.0",
     "@tiptap/starter-kit": "^3.19.0",
     "@types/turndown": "^5.0.6",
+    "chokidar": "^5.0.0",
     "date-fns": "^4.1.0",
     "drizzle-orm": "^0.29.0",
+    "dropbox": "^10.34.0",
     "electron-store": "^8.1.0",
     "gray-matter": "^4.0.3",
     "marked-react": "^3.0.2",