Remove iso-639-1 package & install langs

package-lock.json

@@ -109,10 +109,10 @@
       "integrity": "sha1-6PvzdNxVb/iUehDcsFctYz8s+hA=",
       "dev": true
     },
-    "iso-639-1": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/iso-639-1/-/iso-639-1-2.1.0.tgz",
-      "integrity": "sha512-8CTinLimb9ncAJ11wpCETWZ51qsQ3LS4vMHF2wxRRtR3+b7bvIxUlXOGYIdq0413+baWnbyG5dBluVcezOG/LQ==",
+    "langs": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/langs/-/langs-2.0.0.tgz",
+      "integrity": "sha1-AMMs5IFSpJphRFC5uiYyq1igo2Q=",
       "dev": true
     },
     "m3u8-file-parser": {