note-editor.component.html

<mat-form-field appearance="outline">
    <textarea matInput placeholder="{{lang.addNote}}" [(ngModel)]="content"></textarea>
    <button matSuffix color="primary" mat-icon-button [matMenuTriggerFor]="menu">
        <mat-icon fontSet="fas" fontIcon="fa-file-alt fa-2x"></mat-icon>
    </button>
    <mat-menu #menu="matMenu">
        <div style="text-align: center;font-size: 10px;opacity: 0.5;margin-top:-15px;">
            Modèles d'annotations
        </div>
        <button mat-menu-item>
            <span>Clôture pour REJET</span>
        </button>
        <button mat-menu-item>
            <span>Clôture pour ABANDON</span>
        </button>
    </mat-menu>
</mat-form-field>