add file and folder download

package.json

@@ -1,6 +1,6 @@
 {
   "name": "ignis",
-  "version": "0.6.2",
+  "version": "0.6.4",
   "private": true,
   "description": "An Electron shim and server bridge for running Obsidian in a browser.",
   "scripts": {
@@ -9,6 +9,7 @@
     "dev": "npm run build && npm run dev:server"
   },
   "dependencies": {
+    "archiver": "^7.0.1",
     "chokidar": "^3.6.0",
     "compression": "^1.7.4",
     "cors": "^2.8.5",