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/recipe/recipe-item.ts

@@ -4,12 +4,12 @@ export class RecipeItem {
   id: string | undefined;
   product: ProductSku;
   quantity: number;
-  price: number;
+  description: string;
 
   public constructor(init?: Partial<RecipeItem>) {
     this.product = new ProductSku();
     this.quantity = 0;
-    this.price = 0;
+    this.description = '';
     Object.assign(this, init);
   }
 }