feat(dashboard): manage discounts conditions (#6620)

**What**
- forms for managing discount conditions

---

https://github.com/medusajs/medusa/assets/16856471/bb0b3fe8-fa60-479b-bc42-6db9d422bcdf





Co-authored-by: Kasper Fabricius Kristensen <45367945+kasperkristensen@users.noreply.github.com>

packages/admin-next/dashboard/src/hooks/table/columns/use-customer-group-table-columns.tsx

@@ -0,0 +1,34 @@
+import { CustomerGroup } from "@medusajs/medusa"
+import { createColumnHelper } from "@tanstack/react-table"
+import { useMemo } from "react"
+import { Text } from "@medusajs/ui"
+
+import { NameHeader } from "../../../components/table/table-cells/common/name-cell"
+import {
+  CreatedAtHeader,
+  CreatedAtCell,
+} from "../../../components/table/table-cells/common/created-at-cell"
+
+const columnHelper = createColumnHelper<CustomerGroup>()
+
+export const useCustomerGroupTableColumns = () => {
+  return useMemo(
+    () => [
+      columnHelper.display({
+        id: "name",
+        header: () => <NameHeader />,
+        cell: ({
+          row: {
+            original: { name },
+          },
+        }) => <Text size="small">{name}</Text>,
+      }),
+
+      columnHelper.accessor("created_at", {
+        header: () => <CreatedAtHeader />,
+        cell: ({ getValue }) => <CreatedAtCell date={getValue()} />,
+      }),
+    ],
+    []
+  )
+}

packages/admin-next/dashboard/src/hooks/table/query/use-customer-group-table-query.tsx

@@ -0,0 +1,34 @@
+import { AdminGetCustomerGroupsParams } from "@medusajs/medusa"
+
+import { useQueryParams } from "../../use-query-params"
+
+type UseCustomerGroupTableQueryProps = {
+  prefix?: string
+  pageSize?: number
+}
+
+export const useCustomerGroupTableQuery = ({
+  prefix,
+  pageSize = 20,
+}: UseCustomerGroupTableQueryProps) => {
+  const queryObject = useQueryParams(
+    ["offset", "q", "has_account", "order", "created_at", "updated_at"],
+    prefix
+  )
+
+  const { offset, created_at, updated_at, q, order } = queryObject
+
+  const searchParams: AdminGetCustomerGroupsParams = {
+    limit: pageSize,
+    offset: offset ? Number(offset) : 0,
+    order,
+    created_at: created_at ? JSON.parse(created_at) : undefined,
+    updated_at: updated_at ? JSON.parse(updated_at) : undefined,
+    q,
+  }
+
+  return {
+    searchParams,
+    raw: queryObject,
+  }
+}