chore: remove dotenv dependency and update version to 1.6.4

package-lock.json

@@ -1,18 +1,17 @@
 {
   "name": "freedom-loader",
-  "version": "1.6.4-preview",
+  "version": "1.6.4",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "freedom-loader",
-      "version": "1.6.4-preview",
+      "version": "1.6.4",
       "license": "GPL-3.0-only",
       "dependencies": {
         "chalk": "^4.1.2",
         "debug": "^4.4.1",
         "discord-rpc": "^4.0.1",
-        "dotenv": "^17.4.2",
         "electron-updater": "^6.6.2",
         "express": "^5.1.0",
         "express-rate-limit": "^8.2.1",
@@ -4193,18 +4192,6 @@
         "js-yaml": "^4.1.0"
       }
     },
-    "node_modules/dotenv": {
-      "version": "17.4.2",
-      "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-17.4.2.tgz",
-      "integrity": "sha512-nI4U3TottKAcAD9LLud4Cb7b2QztQMUEfHbvhTH09bqXTxnSie8WnjPALV/WMCrJZ6UV/qHJ6L03OqO3LcdYZw==",
-      "license": "BSD-2-Clause",
-      "engines": {
-        "node": ">=12"
-      },
-      "funding": {
-        "url": "https://dotenvx.com"
-      }
-    },
     "node_modules/dotenv-expand": {
       "version": "11.0.7",
       "resolved": "https://registry.npmjs.org/dotenv-expand/-/dotenv-expand-11.0.7.tgz",