Adjustments for playwright testing

src/frontend/src/forms/BuildForms.tsx

@@ -285,6 +285,7 @@ function BuildOutputFormRow({
         radius='sm'
         step={1}
         decimalScale={10}
+        aria-label='number-field-quantity'
         value={props.item.quantity ?? ''}
         onChange={(value: number | string) => {
           let nextValue: number | '' = '';

src/frontend/src/forms/PurchaseOrderForms.tsx

@@ -577,6 +577,7 @@ function LineItemFormRow({
         <Table.Td style={{ whiteSpace: 'nowrap' }}>
           <NumberInput
             radius='sm'
+            aria-label='number-field-quantity'
             min={0}
             step={1}
             decimalScale={10}

src/frontend/src/forms/SalesOrderForms.tsx

@@ -375,6 +375,7 @@ function SalesOrderAllocateLineRow({
       <Table.Td>
         <NumberInput
           radius='sm'
+          aria-label='number-field-quantity'
           min={0}
           step={1}
           decimalScale={10}

src/frontend/src/forms/StockForms.tsx

@@ -801,6 +801,7 @@ function StockOperationsRow({
           <Table.Td>
             <NumberInput
               radius='sm'
+              aria-label='number-field-quantity'
               min={0}
               step={1}
               decimalScale={10}