[Mat-Form-Field] label/placeholder shake animation on input error

[ghost]

Feature Description

See the example in the official docs:

• Material Design - Text Fields - Anatomy > Assistive Elements > Error Text
• Direct link to video example

In a form field, on error, the label/placeholder lightly shakes (left and right) as it turns red.

Use Case

This will enhance form field UX by subtly grabbing user attention for errors during form field entry

[ghost]

I haven't dived into the repo before but in the meantime here is the shake animation on my custom component that I wrapped around mat-form-field

animations: [
    trigger('errorShake', [
      state('0', style({})),
      state('1', style({})),
      transition('0 => 1', animate('450ms ease-out', keyframes([
        style({ transform: 'translateX(0px)', offset: 0 }),
        style({ transform: 'translateX(3.5px)', offset: 0.2 }),
        style({ transform: 'translateX(-2.25px)', offset: 0.4 }),
        style({ transform: 'translateX(1.25px)', offset: 0.6 }),
        style({ transform: 'translateX(-.5px)', offset: 0.8 }),
        style({ transform: 'translateX(0px)', offset: 1.0 }),
      ])))
    ])
  ]```

[OlgaKavalenya]

Hello @MMutch, I have the similar issue, only I need to remove animation from mat-form-field
I tried to create my custom component

import { Component } from '@angular/core';

@Component({
    selector: '[myWrapperTest]',
    template: '
    <mat-form-field></mat-form-field>    
  ',    
  animations: [
    trigger('transitionMessages', [
        
        state('enter', style({ opacity: 1, transform: 'translateY(0%)' })),
        transition('void => enter', [
            style({ opacity: 0, transform: 'translateY(-100%)' }),
            // animate('0ms'),
        ]),
    ])],
  })

  export class WrapperMatFormFieldComponent{
  }`

Then I tried to apply my wrapper 
`<form [formGroup]="myInfoForm" name="myInfoForm" class="MyInfo-container Form-textSelect">
      <mat-form-field myWrapperTest appearance="outline" class="MyModal-formField" required>
        <mat-label>Name <em>Required</em></mat-label>
        <input matInput formControlName="name" id="name">
        <mat-error>
          <ng-container *ngTemplateOutlet="nameErrors"></ng-container>
        </mat-error>
      </mat-form-field>
</form>`

If I apply wrapper to <mat-form-field>, I get the error 'Error: Template parse errors:
More than one component matched on this element.
Make sure that only one component's selector can match a given element.
Conflicting components: MatFormField,WrapperMatFormFieldComponent'.
When I apply it to <form> or <div>, it doesn't work (any changes) 

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