fix(analytics-mailer): strictly enforce monthly reports and remove weekly logic completely

apps/analytics-mailer/config.json

@@ -4,31 +4,27 @@
     "domain": "klz-cables.com",
     "clientEmail": "klaus.mintel@klz-cables.com, michael.bodemer@klz-cables.com, marc@mintel.me",
     "clientName": "KLZ Cables",
-    "greeting": "Hallo Klaus, hallo Michael,",
-    "interval": "monthly"
+    "greeting": "Hallo Klaus, hallo Michael,"
   },
   {
     "websiteId": "b9035279-72f1-49bc-909d-b073d184c388",
     "domain": "mintel.me",
     "clientEmail": "marc@mintel.me",
     "clientName": "Mintel.me",
-    "greeting": "Hallo Team Mintel,",
-    "interval": "monthly"
+    "greeting": "Hallo Team Mintel,"
   },
   {
     "websiteId": "caa402bc-b2d2-4349-a254-84c0dd2a4460",
     "domain": "mb-grid-solutions.com",
     "clientEmail": "marc@mintel.me",
     "clientName": "MB Grid Solutions",
-    "greeting": "Hallo Marc,",
-    "interval": "monthly"
+    "greeting": "Hallo Marc,"
   },
   {
     "websiteId": "d773ea10-a3b3-4ccf-9024-987e14c4d669",
     "domain": "e-tib.com",
     "clientEmail": "d.joseph@e-tib.com, marc@mintel.me",
     "clientName": "E-TIB GmbH",
-    "greeting": "Hallo Danny,",
-    "interval": "monthly"
+    "greeting": "Hallo Danny,"
   }
-]
+]