Implement Special Day Start Feature in Settings Screen

[AAKrasnova]

Description:

Develop a feature within the Settings screen that allows users to set a custom start time for their day, which will be reflected in quest lists. This feature should be user-friendly and coherent with the app's existing design and functionality.

Acceptance Criteria:

1. Accessing the Feature:

   • Users should be able to easily navigate to the Special Day Start feature from the Settings screen.

2. Setting Special Day Start Time:

   • Provide an interface for users to select and set a custom time for the start of their day.
   • The selected time should be saved and used as the start time of the day in quest lists.
   • Time should work in the user's timezone (as all times in the application)

3. Displaying Current Special Day Start Time:

   • Display the current set time prominently within the Special Day Start feature section.
   • Provide an option to view how the custom day start time affects the quest lists:
     • Add hint for Today "till X of tomorrow | Y of today"
     • Add hint for This week "till X of Monday| Y of Sunday"

4. Error Handling:

   • Display clear error messages for any issues that arise while setting the special day start time.

5. Success Feedback:

   • Display a success message or visual confirmation when the special day start time is set successfully.

6. Performance:

   • Ensure that setting and saving the special day start time is performant and does not cause lag or other performance issues.

Test Scenarios:

• Test setting, viewing, and changing the special day start time on various device types and screen sizes.
• Test how the special day start time setting affects the quest lists.

Technical Notes:

• Consider the implications of time zones and ensure that the feature works correctly for users in different geographic locations.