added stylistic spinner

src/app/app.component.css

@@ -39,3 +39,10 @@ mat-toolbar.top {
 mat-form-field.mat-form-field {
     font-size: 24px;
   }
+
+.spinner {
+    position: absolute;
+    display: inline-block;
+    margin-left: 8px;
+    margin-top: -10px;
+}

src/app/app.component.html

@@ -39,8 +39,12 @@
 </div>
 <br/>
 <div class="centered big" id="bar_div" *ngIf="downloadingfile;else nofile">
-    <div *ngIf="determinateProgress;else indeterminateprogress">
+    <div style="display: inline-block; width: 800px;" *ngIf="determinateProgress;else indeterminateprogress">
         <mat-progress-bar mode="determinate" value="{{percentDownloaded}}"></mat-progress-bar>
+        <br/>
+    </div>
+    <div *ngIf="determinateProgress && percentDownloaded === 100" class="spinner">
+        <mat-spinner [diameter]="25"></mat-spinner>
     </div>
     <ng-template #indeterminateprogress>
         <mat-progress-bar mode="indeterminate"></mat-progress-bar>
@@ -50,7 +54,7 @@
 <ng-template #nofile>
 
 </ng-template>
-<div *ngIf="fileManagerEnabled">
+<div style="margin: 20px" *ngIf="fileManagerEnabled">
     <mat-accordion>
         <mat-expansion-panel class="big">
             <mat-expansion-panel-header>

src/app/app.module.ts

@@ -3,7 +3,8 @@ import { NgModule } from '@angular/core';
 import {MatNativeDateModule, MatRadioModule, MatInputModule, MatButtonModule, MatSidenavModule, MatIconModule, MatListModule,
   MatSnackBarModule, MatCardModule, MatSelectModule, MatToolbarModule, MatCheckboxModule, MatGridListModule,
   MatProgressBarModule, MatExpansionModule,
-  MatGridList} from '@angular/material';
+  MatGridList,
+  MatProgressSpinnerModule} from '@angular/material';
   import {FormsModule, ReactiveFormsModule} from '@angular/forms';
 import { AppComponent } from './app.component';
 import {BrowserAnimationsModule} from '@angular/platform-browser/animations';
@@ -41,6 +42,7 @@ import {RouterModule} from '@angular/router';
     MatGridListModule,
     MatExpansionModule,
     MatProgressBarModule,
+    MatProgressSpinnerModule,
     RouterModule
   ],
   providers: [PostsService],