project: downgrade ngx-spinner version

The first part of this commit downgrade the ngx-spinner version for compatibility
with Angular 8.
The second part update two html templates to use spinner on ng-core components because the
migration to ngx-spinner removed old spinner.

* Adds ngx-spinner into app component HTML template.
* Adds ngx-spinner into public search app component HTML template.

Co-Authored-by: Lauren-D <laurent.dubois@itld-solutions.be>

package.json

@@ -83,7 +83,7 @@
     "lodash-es": "4.17.14",
     "moment": "^2.24.0",
     "ngx-bootstrap": "^5.6.2",
-    "ngx-spinner": "^9.0.2",
+    "ngx-spinner": "^8.1.0",
     "ngx-toastr": "^10.2.0",
     "ngx-toggle-switch": "^2.0.5",
     "rxjs": "^6.4.0",

projects/admin/src/app/app.component.html

@@ -14,6 +14,7 @@
   You should have received a copy of the GNU Affero General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 -->
+<ngx-spinner type="ball-spin-clockwise" size="medium"></ngx-spinner>
 <div *ngIf="!user" translate>Loading…</div>
 <ng-container *ngIf="user">
   <header>

projects/public-search/src/app/app.component.html

@@ -14,5 +14,5 @@
   You should have received a copy of the GNU Affero General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 -->
-
+<ngx-spinner type="ball-spin-clockwise" size="medium"></ngx-spinner>
 <router-outlet></router-outlet>