Ajouter un loader sur l'ajout des sauts

Front/skydivelogs-app/src/app/new-jump/new-jump.component.html

@@ -1,4 +1,4 @@
-<form class="formNewJumps" (ngSubmit)="onFormSubmit()">
+<form class="formNewJumps" (ngSubmit)="onFormSubmit()" *ngIf="allDatasLoaded() else loading">
   <mat-form-field>
     <mat-label>Choose the jump type</mat-label>
     <input type="text" matInput [matAutocomplete]="autoJumpType" [(ngModel)]="selectedJumpType" name="selectedJumpType">
@@ -97,3 +97,7 @@
   <br />
   <button class="btn btn-primary" *ngIf="isValidatedForm()">Submit</button>
 </form>
+
+<ng-template #loading>
+  <mat-progress-spinner [mode]="'indeterminate'"></mat-progress-spinner>
+</ng-template>