Chore: Upgrade to Angular v18

Chore: Upgrade to Python 3.12
Chore: Upgrade to psycopg3

bookie/src/app/taxes/tax-detail/tax-detail.component.ts

@@ -1,6 +1,12 @@
 import { AfterViewInit, 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 { MatFormField, MatLabel, MatHint, MatSuffix } from '@angular/material/form-field';
+import { MatInput } from '@angular/material/input';
+import { MatSelect } from '@angular/material/select';
 import { ActivatedRoute, Router } from '@angular/router';
 import { round } from 'mathjs';
 import { Regime } from 'src/app/core/regime';
@@ -14,6 +20,23 @@ import { TaxService } from '../tax.service';
   selector: 'app-tax-detail',
   templateUrl: './tax-detail.component.html',
   styleUrls: ['./tax-detail.component.css'],
+  standalone: true,
+  imports: [
+    MatCard,
+    MatCardHeader,
+    MatCardTitle,
+    MatCardContent,
+    ReactiveFormsModule,
+    MatFormField,
+    MatLabel,
+    MatInput,
+    MatHint,
+    MatSuffix,
+    MatSelect,
+    MatOption,
+    MatCardActions,
+    MatButton,
+  ],
 })
 export class TaxDetailComponent implements OnInit, AfterViewInit {
   @ViewChild('nameElement', { static: true }) nameElement?: ElementRef;
@@ -67,27 +90,27 @@ export class TaxDetailComponent implements OnInit, AfterViewInit {
   }
 
   save() {
-    this.ser.saveOrUpdate(this.getItem()).subscribe(
-      () => {
+    this.ser.saveOrUpdate(this.getItem()).subscribe({
+      next: () => {
         this.toaster.show('Success', '');
         this.router.navigateByUrl('/taxes');
       },
-      (error) => {
+      error: (error) => {
         this.toaster.show('Error', error);
       },
-    );
+    });
   }
 
   delete() {
-    this.ser.delete(this.item.id as string).subscribe(
-      () => {
+    this.ser.delete(this.item.id as string).subscribe({
+      next: () => {
         this.toaster.show('Success', '');
         this.router.navigateByUrl('/taxes');
       },
-      (error) => {
+      error: (error) => {
         this.toaster.show('Error', error);
       },
-    );
+    });
   }
 
   confirmDelete(): void {