Chore: Upgrade to Angular v18

Chore: Upgrade to Python 3.12
Chore: Upgrade to psycopg3

bookie/src/app/header-footer/header-footer.component.ts

@@ -1,7 +1,13 @@
 import { Component, ElementRef, OnInit, ViewChild } from '@angular/core';
-import { FormControl, FormGroup } from '@angular/forms';
+import { FormControl, FormGroup, ReactiveFormsModule } from '@angular/forms';
+import { MatButton } from '@angular/material/button';
+import { MatCard, MatCardHeader, MatCardTitle, MatCardContent, MatCardActions } from '@angular/material/card';
+import { MatOption } from '@angular/material/core';
 import { MatDialog } from '@angular/material/dialog';
-import { MatSelectChange } from '@angular/material/select';
+import { MatDivider } from '@angular/material/divider';
+import { MatFormField, MatLabel } from '@angular/material/form-field';
+import { MatInput } from '@angular/material/input';
+import { MatSelectChange, MatSelect } from '@angular/material/select';
 import { ActivatedRoute, Router } from '@angular/router';
 import { map } from 'rxjs/operators';
 
@@ -14,6 +20,22 @@ import { HeaderFooterService } from './header-footer.service';
   selector: 'app-section-printer',
   templateUrl: './header-footer.component.html',
   styleUrls: ['./header-footer.component.css'],
+  standalone: true,
+  imports: [
+    MatCard,
+    MatCardHeader,
+    MatCardTitle,
+    MatCardContent,
+    ReactiveFormsModule,
+    MatFormField,
+    MatLabel,
+    MatSelect,
+    MatOption,
+    MatInput,
+    MatDivider,
+    MatCardActions,
+    MatButton,
+  ],
 })
 export class HeaderFooterComponent implements OnInit {
   @ViewChild('section', { static: true }) sectionElement?: ElementRef;
@@ -60,15 +82,15 @@ export class HeaderFooterComponent implements OnInit {
   }
 
   save() {
-    this.ser.save(this.getItem()).subscribe(
-      (result: HeaderFooter[]) => {
+    this.ser.save(this.getItem()).subscribe({
+      next: (result: HeaderFooter[]) => {
         this.toaster.show('Success', '');
         this.showItem(result);
       },
-      (error) => {
+      error: (error) => {
         this.toaster.show('Error', error);
       },
-    );
+    });
   }
 
   getItem(): HeaderFooter {