feat(i18n): enhance locale support for rebate settings and report exports

- Updated English, Nepali, and Chinese locale files to include new translations for the "apply rebate to payout" feature, enhancing clarity on its functionality.
- Added new export options for previewing CSV and Excel files in reports, improving user experience with clearer export capabilities.
- Enhanced internationalization support across multiple locales to ensure consistent messaging in the admin interface.

src/modules/config/doc/odds-config-doc-screen.tsx

@@ -375,7 +375,7 @@ export function OddsConfigDocScreen({
         clone_from_version_id: rollbackTarget.id,
       });
       toast.success(
-        t("odds.rollbackSuccess", {
+        t("versionActions.rollbackSuccess", {
           ns: "config",
           fromVersion: rollbackTarget.version_no,
           version: d.version_no,
@@ -388,7 +388,7 @@ export function OddsConfigDocScreen({
       setRollbackOpen(false);
       setRollbackTarget(null);
     } catch (e) {
-      toast.error(e instanceof LotteryApiBizError ? e.message : t("odds.rollbackFailed", { ns: "config" }));
+      toast.error(e instanceof LotteryApiBizError ? e.message : t("versionActions.rollbackFailed", { ns: "config" }));
     } finally {
       setSaving(false);
     }
@@ -611,9 +611,12 @@ export function OddsConfigDocScreen({
       <Dialog open={rollbackOpen} onOpenChange={setRollbackOpen}>
         <DialogContent showCloseButton className="sm:max-w-md">
           <DialogHeader>
-            <DialogTitle>{t("odds.rollbackDialog.title", { ns: "config" })}</DialogTitle>
+            <DialogTitle>{t("versionActions.rollbackDialog.title", { ns: "config" })}</DialogTitle>
             <DialogDescription>
-              {t("odds.rollbackDialog.description", { ns: "config", version: rollbackTarget?.version_no ?? "—" })}
+              {t("versionActions.rollbackDialog.description", {
+                ns: "config",
+                version: rollbackTarget?.version_no ?? "—",
+              })}
             </DialogDescription>
           </DialogHeader>
           <DialogFooter>
@@ -621,7 +624,7 @@ export function OddsConfigDocScreen({
               {t("actions.cancel", { ns: "adminUsers" })}
             </Button>
             <Button type="button" onClick={() => void handleRollback()} disabled={!rollbackTarget || saving}>
-              {t("odds.rollbackDialog.confirm", { ns: "config" })}
+              {t("versionActions.rollbackDialog.confirm", { ns: "config" })}
             </Button>
           </DialogFooter>
         </DialogContent>