Feature: Adding recipe templates to print recipes.

Feautre: Recipe export to xlsx
Chore: Python 11 style type annotations
Chore: Moved to sqlalchemy 2.0
Chore: Minimum python is 3.11
Fix: Fix nullability of a lot of fields in the database.

overlord/src/app/client/client-list/client-list.component.html

@@ -6,7 +6,7 @@
     <mat-table #table [dataSource]="dataSource" matSort aria-label="Elements">
       <!-- Code Column -->
       <ng-container matColumnDef="code">
-        <mat-header-cell *matHeaderCellDef mat-sort-header>Name</mat-header-cell>
+        <mat-header-cell *matHeaderCellDef mat-sort-header>Code</mat-header-cell>
         <mat-cell *matCellDef="let row">{{ row.code }}</mat-cell>
       </ng-container>