Fix all ESLint errors

virtweb_frontend/src/widgets/TabsWidget.tsx

@@ -1,3 +1,4 @@
+/* eslint-disable react-x/no-array-index-key */
 import { Box, Tab, Tabs } from "@mui/material";
 
 export interface TabWidgetOption<E> {
@@ -24,7 +25,9 @@ export function TabsWidget<E>(p: {
     <Box sx={{ borderBottom: 1, borderColor: "divider" }}>
       <Tabs
         value={currTabIndex}
-        onChange={(_ev, newVal) => { updateActiveTab(newVal); }}
+        onChange={(_ev, newVal) => {
+          updateActiveTab(newVal);
+        }}
       >
         {activeOptions.map((o, index) => (
           <Tab key={index} label={o.label} style={{ color: o.color }} />