(fix):Add OnInit method for the label to use on app-attribute-label

WARNING: This is a temporary fix for the labelling of data on bootstrap array on the front-end. Sall be fixed by further development on the server.

To be reviewed @cmoreau @fagneray

client/src/app/shared/components/attribute-label.component.spec.ts

@@ -26,4 +26,15 @@ describe('[instance][search][components] AttributeLabelComponent', () => {
     it('should create component', () => {
         expect(component).toBeTruthy();
     })
-})
\ No newline at end of file
+
+    it('should choose the correct name onInit()', () => {
+        component.label = "coucou";
+
+        component.ngOnInit();
+        expect(component.name).toBe("coucou");
+
+        component.form_label = "coconut";
+        component.ngOnInit();
+        expect(component.name).toBe("coconut");
+    })
+})