Fix all ESLint errors so CI passes on every branch

- Move nested components outside parent functions (GraphsTab, ClientDetailPage, NetworkServicesDHCPPage)
- Add eslint-disable comments for intentional setState-in-effect patterns (form sync in DNS, NTP, Wireless pages)
- Fix unescaped quote entities in JSX (SystemConfigTab, GlobalSearch, TopologyPage)
- Fix empty catch block in main.tsx
- Convert ternary-as-statement to if/else in RadiosTab
- Move Date.now() calls into useMemo in DashboardPage (react-hooks/purity)
- Fix DOM mutation in event handler in TerminalModal (react-hooks/immutability)
- Wrap ref assignment in useLayoutEffect in useSocket (react-hooks/refs)
- Update TypeScript devDependency version pin to match installed version

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/src/components/device-detail/SystemConfigTab.tsx

@@ -543,7 +543,7 @@ export default function SystemConfigTab({ deviceId }: Props) {
 
         {!updateInfo && !updateChecking && !installSuccess && (
           <p className="text-sm text-gray-400 dark:text-slate-500">
-            Click "Check for Updates" to query the MikroTik update server.
+            Click &quot;Check for Updates&quot; to query the MikroTik update server.
           </p>
         )}
       </div>