Chore: Upgrade to Angular v18

Chore: Upgrade to Python 3.12
Chore: Upgrade to psycopg3

bookie/src/app/modifiers/modifier-detail/modifier-detail.component.html

@@ -23,9 +23,11 @@
         <mat-form-field class="flex-auto">
           <mat-label>Category</mat-label>
           <mat-select formControlName="modifierCategory">
-            <mat-option *ngFor="let mc of modifierCategories" [value]="mc.id">
-              {{ mc.name }}
-            </mat-option>
+            @for (mc of modifierCategories; track mc) {
+              <mat-option [value]="mc.id">
+                {{ mc.name }}
+              </mat-option>
+            }
           </mat-select>
         </mat-form-field>
       </div>
@@ -36,6 +38,8 @@
   </mat-card-content>
   <mat-card-actions>
     <button mat-raised-button color="primary" class="mr-5" (click)="save()">Save</button>
-    <button mat-raised-button color="warn" (click)="confirmDelete()" *ngIf="!!item.id">Delete</button>
+    @if (!!item.id) {
+      <button mat-raised-button color="warn" (click)="confirmDelete()">Delete</button>
+    }
   </mat-card-actions>
 </mat-card>