Fix: App component UseEffect infinite loop (#1199)

### Motivation and Context

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The useEffect hook in the App component is causing an infinite rendering
loop. Remove the dependencies that are causing the loop.


### Description

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### Contribution Checklist

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- [ ] The code builds clean without any errors or warnings
- [ ] The PR follows the [Contribution
Guidelines](https://github.com/microsoft/chat-copilot/blob/main/CONTRIBUTING.md)
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raises no violations
- [ ] All unit tests pass, and I have added new tests where possible
- [ ] I didn't break anyone 😄

webapp/src/App.tsx

@@ -122,8 +122,8 @@ const App = () => {
                     }
                 }),
             ]);
-        }
-    }, [instance, isAuthenticated, appState, isMaintenance, handleAppStateChange, dispatch, chat, file]);
+        } // eslint-disable-next-line react-hooks/exhaustive-deps
+    }, [instance, isAuthenticated, appState, isMaintenance]);
 
     const theme = features[FeatureKeys.DarkMode].enabled ? semanticKernelDarkTheme : semanticKernelLightTheme;