feat: some trans

i18n/cn.json

@@ -40,5 +40,11 @@
   "user": "用户",
   "user group": "用户组",
   "login logs": "登陆日志",
-  "language": "语言选择"
+  "language": "语言选择",
+  "found": "发现",
+  "users ": "用户",
+  "choose a user": "选择一个用户",
+  "please choose a user": "请选择一个用户",
+  "cancel": "取消",
+  "confirm": "确认"
 }

src/app/ControlPage/cleftbar/dialog.html

-<h1 mat-dialog-title>Found {{data.users.length}} Users</h1>
+<h1 mat-dialog-title>{{"Found"|trans}} {{data.users.length}} {{"Users "|trans}}</h1>
 
 <mat-form-field>
   <mat-select [(value)]="selected"
               [compareWith]="compareFn"
               [formControl]="UserSelectControl"
-              placeholder="Choose a User" required>
+              placeholder="{{'Choose a User'|trans}}" required>
     <mat-option *ngFor="let u of data.users" value="{{u.id}}">{{u.username}}</mat-option>
   </mat-select>
-  <mat-error *ngIf="UserSelectControl.hasError('required')">Please choose a User</mat-error>
+  <mat-error *ngIf="UserSelectControl.hasError('required')">{{"Please choose a User"|trans}}</mat-error>
 
 </mat-form-field>
 <div style="float: right">
-  <button mat-raised-button (click)="onNoClick()">Cancel</button>
-  <button mat-raised-button color="primary" [mat-dialog-close]="selected" cdkFocusInitial>Confirm</button>
+  <button mat-raised-button (click)="onNoClick()">{{"Cancel"|trans}}</button>
+  <button mat-raised-button color="primary" [mat-dialog-close]="selected" cdkFocusInitial>{{"Confirm"|trans}}</button>
 </div>