v1.8 - Date/Time Countdown, Format, Prefix

• 🆕 Date/Time Countdown action - Let's you countdown to a specific date or time. 🔥
• Added a new Format setting which allows you to customize the timer displayed on key (and file). 🔥
• Added support for timer Prefix on keys
• Both File Prefix and Key Prefix support newlines \n
• Now customizable if timer starts counting up or not when timer ends
• Minor bug fixes