Fixed not being able to clear price field

Resolves #525

client/src/pages/spools/edit.tsx

@@ -9,7 +9,7 @@ import { useNavigate, useSearchParams } from "react-router-dom";
 import { ExtraFieldFormItem, ParsedExtras, StringifiedExtras } from "../../components/extraFields";
 import { useSpoolmanLocations } from "../../components/otherModels";
 import { searchMatches } from "../../utils/filtering";
-import { numberFormatter, numberParser } from "../../utils/parsing";
+import { numberFormatter, numberParser, numberParserAllowEmpty } from "../../utils/parsing";
 import { EntityType, useGetFields } from "../../utils/queryFields";
 import { getCurrencySymbol, useCurrency } from "../../utils/settings";
 import { createFilamentFromExternal } from "../filaments/functions";
@@ -321,7 +321,7 @@ export const SpoolEdit: React.FC<IResourceComponentsProps> = () => {
             addonAfter={getCurrencySymbol(undefined, currency)}
             precision={2}
             formatter={numberFormatter}
-            parser={numberParser}
+            parser={numberParserAllowEmpty}
           />
         </Form.Item>
         <Form.Item