chore: update author email address

Change contact email from jokeefe@fastmail.com to admin@linuxhg.com
in the Wails project configuration.

wails.json

@@ -8,7 +8,7 @@
   "frontend:dev:serverUrl": "auto",
   "author": {
     "name": "John O'Keefe",
-    "email": "jokeefe@fastmail.com"
+    "email": "admin@linuxhg.com"
   },
   "info": {
     "productName": "AniTrack",