replace old client with new client from commafeed-ui repository

commafeed-client/src/components/content/add/CategorySelect.tsx

@@ -0,0 +1,18 @@
+import { Select, SelectItem, SelectProps } from "@mantine/core"
+import { Constants } from "app/constants"
+import { useAppSelector } from "app/store"
+import { flattenCategoryTree } from "app/utils"
+
+export function CategorySelect(props: Partial<SelectProps>) {
+    const rootCategory = useAppSelector(state => state.tree.rootCategory)
+    const categories = rootCategory && flattenCategoryTree(rootCategory)
+    const selectData: SelectItem[] | undefined = categories
+        ?.filter(c => c.id !== Constants.categoryIds.all)
+        .sort((c1, c2) => c1.name.localeCompare(c2.name))
+        .map(c => ({
+            label: c.name,
+            value: c.id,
+        }))
+
+    return <Select {...props} data={selectData ?? []} disabled={!selectData} />
+}