docs: fix docs (#19041)

(cherry picked from commit 1cf4048)

Author: santoshyadavdev

src/components-examples/cdk/text-field/BUILD.bazel

@@ -12,6 +12,7 @@ ng_module(
     module_name = "@angular/components-examples/cdk/text-field",
     deps = [
         "//src/cdk/text-field",
+        "//src/material/button",
         "//src/material/input",
         "//src/material/select",
     ],

src/components-examples/cdk/text-field/index.ts

@@ -1,6 +1,7 @@
 import {TextFieldModule} from '@angular/cdk/text-field';
 import {CommonModule} from '@angular/common';
 import {NgModule} from '@angular/core';
+import {MatButtonModule} from '@angular/material/button';
 import {MatInputModule} from '@angular/material/input';
 import {MatSelectModule} from '@angular/material/select';
 import {
@@ -29,6 +30,7 @@ const EXAMPLES = [
   imports: [
     CommonModule,
     TextFieldModule,
+    MatButtonModule,
     MatInputModule,
     MatSelectModule,
   ],