fixes after ng update

src/app/modules/songs/song/edit/edit-song/edit-song.component.html

@@ -95,16 +95,15 @@
     </mat-form-field>
 
     <mat-form-field appearance="outline">
-      <mat-chip-list #chipList>
-        <mat-chip
+      <mat-chip-grid #chipList>
+        <mat-chip-row
           (removed)="removeFlag(flag)"
           *ngFor="let flag of flags"
           [removable]="true"
-          [selectable]="false"
         >
           {{ flag }}&nbsp;
           <fa-icon (click)="removeFlag(flag)" [icon]="faRemove"></fa-icon>
-        </mat-chip>
+        </mat-chip-row>
         <input
           (matChipInputTokenEnd)="addFlag($event)"
           [matChipInputAddOnBlur]="true"
@@ -112,7 +111,7 @@
           [matChipInputSeparatorKeyCodes]="separatorKeysCodes"
           placeholder="Attribute"
         />
-      </mat-chip-list>
+      </mat-chip-grid>
     </mat-form-field>
 
     <div class="half">