Use hasAccountingConnections instead of getValidConnectedIntegration for category button visibility

The "Add category" button in the expense category picker was using
getValidConnectedIntegration which excludes unverified (failed) connections,
while the Categories settings page uses hasAccountingConnections which detects
any connection regardless of sync status. This aligns both checks so the button
is consistently hidden when an accounting connection exists but has failed.

Co-authored-by: daledah <daledah@users.noreply.github.com>

Author: MelvinBot

src/pages/iou/request/step/IOURequestStepCategory.tsx

@@ -30,7 +30,7 @@ import {isCategoryMissing} from '@libs/CategoryUtils';
 import getNonEmptyStringOnyxID from '@libs/getNonEmptyStringOnyxID';
 import Navigation from '@libs/Navigation/Navigation';
 import {hasEnabledOptions} from '@libs/OptionsListUtils';
-import {getValidConnectedIntegration, isPolicyAdmin} from '@libs/PolicyUtils';
+import {hasAccountingConnections, isPolicyAdmin} from '@libs/PolicyUtils';
 import {getTransactionDetails, isGroupPolicy, isReportInGroupPolicy} from '@libs/ReportUtils';
 import type {SkeletonSpanReasonAttributes} from '@libs/telemetry/useSkeletonSpan';
 import {getRequestType} from '@libs/TransactionUtils';
@@ -92,7 +92,7 @@ function IOURequestStepCategory({
 
     const categoryForDisplay = isCategoryMissing(transactionCategory) ? '' : transactionCategory;
 
-    const canCreateCategoryInSitu = isPolicyAdmin(policy) && !getValidConnectedIntegration(policy) && !!policy?.areCategoriesEnabled;
+    const canCreateCategoryInSitu = isPolicyAdmin(policy) && !hasAccountingConnections(policy) && !!policy?.areCategoriesEnabled;
 
     const createCategoryMenuItems = canCreateCategoryInSitu
         ? [