fix: update author information in package.json to include DevForth details

Author: ivictbor

custom/package.json

@@ -6,7 +6,7 @@
     "test": "echo \"Error: no test specified\" && exit 1"
   },
   "keywords": [],
-  "author": "",
+  "author": "DevForth (https://devforth.io)",
   "license": "ISC",
   "description": "",
   "devDependencies": {

package.json

@@ -23,7 +23,7 @@
     "language",
     "vue-i18n"
   ],
-  "author": "devforth",
+  "author": "DevForth (https://devforth.io)",
   "license": "MIT",
   "description": "Internationalization/translation plugin for AdminForth",
   "dependencies": {