Change structure, add scanner deps and fix configurations

hosts/nixos/system/partials/apps.nix

@@ -1,6 +1,6 @@
 { ... }:
 {
-  
+  os.flatpak.enable = true;
   services.flatpak.packages = [
     "io.github.flattool.Warehouse"
   ];

hosts/nixos/system/partials/users.nix

@@ -4,10 +4,7 @@
   users.users = {
     alistreaza = {
       isNormalUser = true;
-      extraGroups = [
-        "wheel"
-        "podman"
-      ];
+      extraGroups = [ "wheel" ];
     };
   };
 }