Ajout de loading sur le chargement

de l'application + lors du chargement
des composants

Front/skydivelogs-app/src/assets/css/custom-theme.scss

@@ -0,0 +1,10 @@
+@import '~@angular/material/theming';
+
+@include mat-core();
+
+$custom-theme-primary: mat-palette($mat-grey, 900);
+$custom-theme-accent:mat-palette($mat-pink, A200, A100, A400);
+$custom-theme-warn: mat-palette($mat-red);
+$custom-theme: mat-light-theme($custom-theme-primary, $custom-theme-accent, $custom-theme-warn);
+
+@include angular-material-theme($custom-theme);