flake-module: rename homeManagerModules to homeModules (#6406)

This reverts commit 066ba0c5cf. After
further discussion, we want to maintain this as the naming scheme going
forward to be similar to standards that have been trying to be
implemented in naming configurations and modules.

flake-module.nix

@@ -14,12 +14,12 @@ in {
           that you can reference them in this or another flake's `homeConfigurations`.
         '';
       };
-      homeManagerModules = mkOption {
+      homeModules = mkOption {
         type = types.lazyAttrsOf types.deferredModule;
         default = { };
         apply = mapAttrs (k: v: {
           _class = "homeManager";
-          _file = "${toString moduleLocation}#homeManagerModules.${k}";
+          _file = "${toString moduleLocation}#homeModules.${k}";
           imports = [ v ];
         });
         description = ''