Upgrade to Angular 16

Merge `angular-update-16` into `dev` branch

src/app/shared/server-selector/server-selector.component.scss

@@ -1,5 +1,7 @@
 .actions {
-  display: inline-block;
+  display: flex;
+  align-items: center;
+  justify-content: space-evenly;
 }
 
 .rg {
@@ -23,3 +25,7 @@
   background-color: white; // don't see mat-option when scrolling
   box-shadow: 1px -2px 10px 0 grey; // shadow at the bottom
 }
+
+mat-form-field {
+  width: 96%;
+}