Bug fixing and debugs (#5704)

Co-authored-by: ConnorYoh <[email protected]>

frontend/src/core/components/shared/ErrorBoundary.tsx

@@ -37,7 +37,6 @@ export default class ErrorBoundary extends React.Component<ErrorBoundaryProps, E
     console.error('Current search:', window.location.search);
     console.error('Timestamp:', new Date().toISOString());
     console.error('User agent:', navigator.userAgent);
-
     // Check for React error codes
     if (error.message.includes('Minified React error')) {
       const errorCodeMatch = error.message.match(/#(\d+)/);
@@ -108,4 +107,4 @@ export default class ErrorBoundary extends React.Component<ErrorBoundaryProps, E
 
     return this.props.children;
   }
-}
+}

frontend/src/core/components/shared/LanguageSelector.tsx

@@ -2,7 +2,7 @@ import React, { useState, useEffect } from 'react';
 import { Menu, Button, ActionIcon } from '@mantine/core';
 import { Tooltip } from '@app/components/shared/Tooltip';
 import { useTranslation } from 'react-i18next';
-import { supportedLanguages } from '@app/i18n';
+import { supportedLanguages, setUserLanguage } from '@app/i18n';
 import LocalIcon from '@app/components/shared/LocalIcon';
 import styles from '@app/components/shared/LanguageSelector.module.css';
 import { Z_INDEX_CONFIG_MODAL } from '@app/styles/zIndex';
@@ -206,7 +206,8 @@ const LanguageSelector: React.FC<LanguageSelectorProps> = ({
 
     // Simulate processing time for smooth transition
     setTimeout(() => {
-      i18n.changeLanguage(value);
+      // Use setUserLanguage to properly set priority (ensures user choice persists across sessions)
+      setUserLanguage(value);
 
       setTimeout(() => {
         setPendingLanguage(null);