Update frontend hint, use textarea for multiline

src-ui/src/app/components/common/input/textarea/textarea.component.html

@@ -0,0 +1,23 @@
+<div class="mb-3" [class.pb-3]="error">
+  <div class="row">
+    <div class="d-flex align-items-center position-relative hidden-button-container" [class.col-md-3]="horizontal">
+      @if (title) {
+        <label class="form-label" [class.mb-md-0]="horizontal" [for]="inputId">{{title}}</label>
+      }
+      @if (removable) {
+        <button type="button" class="btn btn-sm btn-danger position-absolute left-0" (click)="removed.emit(this)">
+          <i-bs name="x"></i-bs>&nbsp;<ng-container i18n>Remove</ng-container>
+          </button>
+        }
+      </div>
+      <div class="position-relative" [class.col-md-9]="horizontal">
+        <textarea #inputField class="form-control" [class.is-invalid]="error" [id]="inputId" [(ngModel)]="value" (change)="onChange(value)" [disabled]="disabled" [placeholder]="placeholder"></textarea>
+        @if (hint) {
+          <small class="form-text text-muted" [innerHTML]="hint | safeHtml"></small>
+        }
+        <div class="invalid-feedback position-absolute top-100">
+          {{error}}
+        </div>
+      </div>
+    </div>
+  </div>

src-ui/src/app/components/common/input/textarea/textarea.component.spec.ts

@@ -0,0 +1,31 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing'
+import {
+  FormsModule,
+  ReactiveFormsModule,
+  NG_VALUE_ACCESSOR,
+} from '@angular/forms'
+import { TextAreaComponent } from './textarea.component'
+
+describe('TextComponent', () => {
+  let component: TextAreaComponent
+  let fixture: ComponentFixture<TextAreaComponent>
+  let input: HTMLTextAreaElement
+
+  beforeEach(async () => {
+    TestBed.configureTestingModule({
+      declarations: [TextAreaComponent],
+      providers: [],
+      imports: [FormsModule, ReactiveFormsModule],
+    }).compileComponents()
+
+    fixture = TestBed.createComponent(TextAreaComponent)
+    fixture.debugElement.injector.get(NG_VALUE_ACCESSOR)
+    component = fixture.componentInstance
+    fixture.detectChanges()
+    input = component.inputField.nativeElement
+  })
+
+  it('should support use of input field', () => {
+    expect(component.value).toBeUndefined()
+  })
+})

src-ui/src/app/components/common/input/textarea/textarea.component.ts

@@ -0,0 +1,24 @@
+import { Component, Input, forwardRef } from '@angular/core'
+import { NG_VALUE_ACCESSOR } from '@angular/forms'
+import { AbstractInputComponent } from '../abstract-input'
+
+@Component({
+  providers: [
+    {
+      provide: NG_VALUE_ACCESSOR,
+      useExisting: forwardRef(() => TextAreaComponent),
+      multi: true,
+    },
+  ],
+  selector: 'pngx-input-textarea',
+  templateUrl: './textarea.component.html',
+  styleUrls: ['./textarea.component.scss'],
+})
+export class TextAreaComponent extends AbstractInputComponent<string> {
+  @Input()
+  placeholder: string = ''
+
+  constructor() {
+    super()
+  }
+}