fix: remove 7 unused variables in widgets and Homepage components

Cleaned up unused imports, parameters, and variables:
- DiskWidget.tsx: removed metricsHistory parameter
- FileManagerContextMenu.tsx: removed ExternalLink import
- Homepage.tsx: removed useTranslation import
- HomepageAlertManager.tsx: removed loading variable
- HomepageAuth.tsx: removed setCookie import (Desktop & Mobile)
- HompageUpdateLog.tsx: removed err parameter

Reduced lint errors from 222 to 216 (6 errors fixed)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/ui/Desktop/Apps/Server/widgets/DiskWidget.tsx

@@ -12,7 +12,7 @@ interface DiskWidgetProps {
   metricsHistory: ServerMetrics[];
 }
 
-export function DiskWidget({ metrics, metricsHistory }: DiskWidgetProps) {
+export function DiskWidget({ metrics }: DiskWidgetProps) {
   const { t } = useTranslation();
 
   // Prepare radial chart data

src/ui/Desktop/Homepage/Homepage.tsx

@@ -4,7 +4,6 @@ import { HomepageUpdateLog } from "@/ui/Desktop/Homepage/HompageUpdateLog.tsx";
 import { HomepageAlertManager } from "@/ui/Desktop/Homepage/HomepageAlertManager.tsx";
 import { Button } from "@/components/ui/button.tsx";
 import { getUserInfo, getDatabaseHealth, getCookie } from "@/ui/main-axios.ts";
-import { useTranslation } from "react-i18next";
 
 interface HomepageProps {
   onSelectView: (view: string) => void;

src/ui/Desktop/Homepage/HomepageAlertManager.tsx

@@ -17,7 +17,7 @@ export function HomepageAlertManager({
   const { t } = useTranslation();
   const [alerts, setAlerts] = useState<TermixAlert[]>([]);
   const [currentAlertIndex, setCurrentAlertIndex] = useState(0);
-  const [loading, setLoading] = useState(false);
+  const [, setLoading] = useState(false);
   const [error, setError] = useState<string | null>(null);
 
   useEffect(() => {

src/ui/Desktop/Homepage/HomepageAuth.tsx

@@ -19,7 +19,6 @@ import {
   completePasswordReset,
   getOIDCAuthorizeUrl,
   verifyTOTPLogin,
-  setCookie,
   getCookie,
   getServerConfig,
   isElectron,

src/ui/Desktop/Homepage/HompageUpdateLog.tsx

@@ -66,7 +66,7 @@ export function HomepageUpdateLog({ loggedIn }: HomepageUpdateLogProps) {
           setVersionInfo(versionRes);
           setError(null);
         })
-        .catch((err) => {
+        .catch(() => {
           setError(t("common.failedToFetchUpdateInfo"));
         })
         .finally(() => setLoading(false));

src/ui/Mobile/Homepage/HomepageAuth.tsx

@@ -19,7 +19,6 @@ import {
   completePasswordReset,
   getOIDCAuthorizeUrl,
   verifyTOTPLogin,
-  setCookie,
   getCookie,
   logoutUser,
   isElectron,