fix: Remove unused imports and fix logger.audit method call

- Remove unused 'cn' and 'TSurveyLanguage' imports from MatrixLabelChoice component
- Replace non-existent logger.audit() with logger.info() in audit logging service
- Resolves TypeScript build errors preventing CI from passing

Co-Authored-By: Johannes <johannes@formbricks.com>

apps/web/modules/ee/audit-logs/lib/service.ts

@@ -11,7 +11,7 @@ const validateEvent = (event: TAuditLogEvent): void => {
 export const logAuditEvent = async (event: TAuditLogEvent): Promise<void> => {
   try {
     validateEvent(event);
-    logger.audit(event);
+    logger.info(event, "Audit event logged");
   } catch (error) {
     // Log error to application logger but don't throw
     // This ensures audit logging failures don't break the application

apps/web/modules/survey/editor/components/matrix-label-choice.tsx

@@ -1,6 +1,5 @@
 "use client";
 
-import { cn } from "@/lib/cn";
 import { QuestionFormInput } from "@/modules/survey/components/question-form-input";
 import { Button } from "@/modules/ui/components/button";
 import { TooltipRenderer } from "@/modules/ui/components/tooltip";
@@ -8,12 +7,7 @@ import { useSortable } from "@dnd-kit/sortable";
 import { CSS } from "@dnd-kit/utilities";
 import { useTranslate } from "@tolgee/react";
 import { GripVerticalIcon, TrashIcon } from "lucide-react";
-import {
-  TI18nString,
-  TSurvey,
-  TSurveyLanguage,
-  TSurveyMatrixQuestion,
-} from "@formbricks/types/surveys/types";
+import { TI18nString, TSurvey, TSurveyMatrixQuestion } from "@formbricks/types/surveys/types";
 import { TUserLocale } from "@formbricks/types/user";
 import { isLabelValidForAllLanguages } from "../lib/validation";