fix(elements): schematics fails with schema.json not found error (#35211)

Fixes #35154

PR Close #35211

packages/elements/schematics/ng-add/BUILD.bazel

@@ -4,11 +4,13 @@ package(default_visibility = ["//visibility:public"])
 
 ts_library(
     name = "ng-add",
-    srcs =
-        [
-            "index.ts",
-            "schema.ts",
-        ],
+    srcs = [
+        "index.ts",
+        "schema.d.ts",
+    ],
+    data = [
+        "schema.json",
+    ],
     deps = [
         "@npm//@angular-devkit/schematics",
         "@npm//@schematics/angular",
@@ -21,9 +23,6 @@ ts_library(
     srcs = [
         "index_spec.ts",
     ],
-    data = [
-        "schema.json",
-    ],
     deps = [
         ":ng-add",
         "@npm//@angular-devkit/schematics",