modules/{output,files,test}: move outputs to build scope

Move the following output options into `build`:
- finalPackage -> package
- printInitPackage
- initPath -> initFile
- filesPlugin -> extraFiles
- test.derivation -> test

wrappers/_shared.nix

@@ -74,7 +74,7 @@ in
             ) extraFiles
           )
           // {
-            ${filesPrefix + initName}.source = cfg.initPath;
+            ${filesPrefix + initName}.source = cfg.build.initFile;
           }
         )
       )

wrappers/darwin.nix

@@ -41,8 +41,8 @@ in
 
   config = mkIf cfg.enable {
     environment.systemPackages = [
-      cfg.finalPackage
-      cfg.printInitPackage
+      cfg.build.package
+      cfg.build.printInitPackage
     ] ++ lib.optional cfg.enableMan self.packages.${pkgs.stdenv.hostPlatform.system}.man-docs;
   };
 }

wrappers/hm.nix

@@ -55,8 +55,8 @@ in
 
   config = mkIf cfg.enable {
     home.packages = [
-      cfg.finalPackage
-      cfg.printInitPackage
+      cfg.build.package
+      cfg.build.printInitPackage
     ] ++ lib.optional cfg.enableMan self.packages.${pkgs.stdenv.hostPlatform.system}.man-docs;
 
     home.sessionVariables = mkIf cfg.defaultEditor { EDITOR = "nvim"; };

wrappers/nixos.nix

@@ -49,8 +49,8 @@ in
 
   config = mkIf cfg.enable {
     environment.systemPackages = [
-      cfg.finalPackage
-      cfg.printInitPackage
+      cfg.build.package
+      cfg.build.printInitPackage
     ] ++ lib.optional cfg.enableMan self.packages.${pkgs.stdenv.hostPlatform.system}.man-docs;
 
     environment.variables = {

wrappers/standalone.nix

@@ -23,13 +23,13 @@ let
           defaultPkgs = pkgs;
         } // extraSpecialArgs;
       };
-      inherit (nixvimConfig.config) enableMan finalPackage printInitPackage;
+      inherit (nixvimConfig.config) enableMan build;
     in
     (pkgs.symlinkJoin {
       name = "nixvim";
       paths = [
-        finalPackage
-        printInitPackage
+        build.package
+        build.printInitPackage
       ] ++ pkgs.lib.optional enableMan self.packages.${pkgs.stdenv.hostPlatform.system}.man-docs;
       meta.mainProgram = "nvim";
     })