feat: backend now uses ffmpeg as local package on server to convert video to audio, added package to dockerfile, naming conventions

backend/package-lock.json

@@ -17,8 +17,7 @@
         "fastify-multipart": "^5.3.1",
         "libreoffice-convert": "^1.6.0",
         "luxon": "^3.5.0",
-        "qrcode": "^1.5.4",
-        "video-to-audio": "^1.0.1"
+        "qrcode": "^1.5.4"
       },
       "devDependencies": {
         "@types/luxon": "^3.4.2",
@@ -1318,12 +1317,6 @@
         "node": ">= 0.8"
       }
     },
-    "node_modules/video-to-audio": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/video-to-audio/-/video-to-audio-1.0.1.tgz",
-      "integrity": "sha512-6+h79x2kSO60PYTT2cXcgXIsqw/3X8a5qshsZanxH0cxbGUVxVllwQdNOWr/8ywDNcgGgecSmk8Q6TJ79gtFjQ==",
-      "license": "MIT"
-    },
     "node_modules/which-module": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/which-module/-/which-module-2.0.1.tgz",