lots of updates + refactoring

app/Models/Environment.php

@@ -33,10 +33,10 @@ class Environment extends Model
     }
     public function postgresqls()
     {
-        return $this->hasMany(StandalonePostgres::class);
+        return $this->hasMany(StandalonePostgresql::class);
     }
     public function services()
     {
         return $this->hasMany(Service::class);
     }
-}
+}