Update folder structure

src/app/components/tree/tree.component.html

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+<div class="grid">
+	<div class="col-12">
+		<div class="card">
+			<h4>Tree</h4>
+			<p-tree [value]="files1" selectionMode="checkbox" [(selection)]="selectedFiles1"></p-tree>
+		</div>
+	</div>
+	<div class="col-12">
+		<div class="card">
+			<h4>TreeTable</h4>
+			<p-treeTable [value]="files2" [columns]="cols" selectionMode="checkbox" [(selection)]="selectedFiles2">
+				<ng-template pTemplate="caption">
+					FileSystem
+				</ng-template>
+				<ng-template pTemplate="header" let-columns>
+					<tr>
+						<th *ngFor="let col of columns">
+							{{col.header}}
+						</th>
+					</tr>
+				</ng-template>
+				<ng-template pTemplate="body" let-rowNode let-rowData="rowData" let-columns="columns">
+					<tr>
+						<td *ngFor="let col of columns; let i = index">
+							<p-treeTableToggler [rowNode]="rowNode" *ngIf="i == 0"></p-treeTableToggler>
+							<p-treeTableCheckbox [value]="rowNode" *ngIf="i == 0"></p-treeTableCheckbox>
+							{{rowData[col.field]}}
+						</td>
+					</tr>
+				</ng-template>
+			</p-treeTable>
+		</div>
+	</div>
+</div>