show description for mod

app/app-detail.component.html

@@ -162,7 +162,8 @@
             <tbody>
             <tr *ngFor="let mod of mods; let i = index">
                 <th scope="row">{{i + 1}}</th>
-                <td>{{mod.name}}</td>
+                <td title="{{mod.description}}">{{mod.name}}
+                    <span *ngIf="mod.description" class="fa fa-info-circle" aria-hidden="true"></span></td>
                 <td *ngIf="mod.isReady()">
                     <button i18n type="button" [disabled]="mod.isInstalled()&&!appsService.allReady(mod)" (click)="uninstall(mod)" class="btn btn-danger btn-sm">卸载</button>
                 </td>