Implement Default Gold Value Feature in Quest Preferences Section

[AAKrasnova]

Description:

Create a feature within the Quest Preferences section of the Settings screen that allows users to set and reset a default gold reward value for quests. This feature should be intuitive and adhere to the app's existing design standards.

Acceptance Criteria:

1. Accessing the Feature:

   • Users should be able to easily navigate to the Default Gold Value feature from the Quest Preferences section of the Settings screen.

2. Setting Default Gold Value:

   • Provide an interface for users to enter and set a default gold reward value for quests.
   • The input field should accept only numerical values.
   • Input validation to ensure the value entered is within a reasonable and allowed range

3. Resetting to App's Default Gold Value:

   • Provide an option for users to reset the gold value to the app's default gold value
     • Default gold value = 5
   • Display the app's default gold value for reference.

4. Error Handling:

   • Display clear error messages for invalid inputs, such as non-numerical values or values outside the allowed range.

5. Success Feedback:

   • Display a success message or visual confirmation when the default gold value is set or reset successfully.

Test Scenarios:

• Test setting and resetting the default gold value
• Test error handling for invalid inputs.