fix(i18n): prevent crash when switching languages due to missing progress data

[Jaswanth-arjun]

Problem

Switching languages caused a runtime error:
"Cannot read properties of undefined (reading 'percent')".

This occurred because some languages were not included in i18nProgress
configuration and the code accessed progress data without null checks.

Solution

• Added missing language ('tr') to i18nProgress configuration
• Added optional chaining to safely access progress data

Result

Language switching works correctly without runtime errors for all supported languages.

[Jaswanth-arjun]

Hi, I have addressed the root cause by updating i18nProgress configuration and adding safe access for progress data. Please let me know if any improvements are needed. Thanks!