FEAT #15546 TIME 0:10 update the floating button for missing languages

src/frontend/app/service/debug/dev-tool.component.html

-<button mat-fab cdkDrag [matBadge]="countMissingLang" [matMenuTriggerFor]="menu" color="warn" style="position: fixed;right: 50px;top: 50px;z-index: 1;">
-    <mat-icon class="fas fa-toolbox" style="height: auto;font-size: 23px;"></mat-icon>
-  </button>
-  <mat-menu #menu="matMenu" [class]="'devToolListMenu'">
-    <button mat-menu-item (click)="openLangTool()">
+
+<ion-fab cdkDrag style="position: fixed;right: 50px;top: 50px;z-index: 1;">
+  <ion-fab-button color="light">
+      <ion-icon  name="language-outline"></ion-icon>
+  </ion-fab-button>
+  <ion-fab-list side="start">
+    <ion-button color="light" (click)="openLangTool()">
       <mat-icon color="primary" class="fas fa-language" style="height: auto;"></mat-icon>
       <span>{{'lang.missingLang' | translate}}</span>&nbsp;&nbsp;<span [matBadge]="countMissingLang">&nbsp;</span>
-    </button>
-  </mat-menu>
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+    </ion-button>
+  </ion-fab-list>
+</ion-fab>