UX Issue: Provide multi-language support for the app.

**Related bugs and feature requests if any**
No bugs

**The Issue**
Currently, the app only supports a single language, which limits accessibility for non-native speakers. Adding multi-language support will make the app more inclusive and usable for users from different linguistic backgrounds, improving the overall user experience.

**Ideal Solution**:
Introduce multi-language support so that users can choose their preferred language from a list of available options. The app should dynamically load and display content in the selected language.
Language Selection UI: Provide a language selection option in the settings or onboarding flow.
Localized Content: Translate app text, including task labels, notifications, buttons, and error messages, into multiple languages.
Fallback Mechanism: Ensure that if a translation is missing, the app defaults to the default language (e.g., English).
Dynamic Language Switching: Allow users to switch languages while using the app without restarting the app.

**Design specifications**:
The language settings should be easy to find, ideally under the app settings or user preferences.
Use a language code or flag icon to represent different languages in the selection UI.
Implement a clean, seamless switch between languages, ensuring that all text elements are translated accurately.

Start by locating the app's settings or onboarding language-selection entry point and cataloging task labels, notifications, buttons, and error messages that need localization. Done means users can select a listed language, switch without restarting, see translated content, and fall back to English when a translation is missing.

Written by the indexing model from the issue text.