some minor improvements

[kamranmt21]

1. add banner when action is entered as an argument

2. Improve displaying sleep time by adding two functions:

• function convert_seconds_to_formatted_time: converts a number of seconds to a formatted string with this format: H Hours & M Minutes & S Seconds

• function calculate_start_time: calculates when the bot will start clicking again after a delay (in seconds).

[shamhi]

thanks