Add an option to change the time format

[ch3thanhs]

1. Environment

• Device: [Pixel 6]
• OS: [Android 12.1]
• APP: [0.8.1]

2. Describe the feature request

As a user I should be able to change the time format that is displayed in the feed, i.e., the time an article was published. (12-hour format or 24-hour format).

[kou9221]

+1 for this

[Ashinch]

@ch3thanhs Good suggestion.