refactor(core): adjust sentry config (#10631)

packages/frontend/apps/electron/src/main/ui/handlers.ts

@@ -32,8 +32,6 @@ import { getOrCreateCustomThemeWindow } from '../windows-manager/custom-theme-wi
 import { getChallengeResponse } from './challenge';
 import { uiSubjects } from './subject';
 
-export let isOnline = true;
-
 export const uiHandlers = {
   isMaximized: async () => {
     const window = await getMainWindow();
@@ -75,9 +73,6 @@ export const uiHandlers = {
     const window = await getMainWindow();
     window?.hide();
   },
-  handleNetworkChange: async (_, _isOnline: boolean) => {
-    isOnline = _isOnline;
-  },
   getChallengeResponse: async (_, challenge: string) => {
     return getChallengeResponse(challenge);
   },