Fix microAmount (#2654)

* Fix microAmount

* Code review returns

* Parse currency values as string

* Jeremy's returns

* fix: scalars not properly implemented

* fix: filters not working on big float scalar

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Co-authored-by: Jérémy Magrin <jeremy.magrin@gmail.com>

server/src/metadata/field-metadata/field-metadata.entity.ts

@@ -25,6 +25,7 @@ export enum FieldMetadataType {
   DATE_TIME = 'DATE_TIME',
   BOOLEAN = 'BOOLEAN',
   NUMBER = 'NUMBER',
+  NUMERIC = 'NUMERIC',
   PROBABILITY = 'PROBABILITY',
   ENUM = 'ENUM',
   LINK = 'LINK',