Links Extractor v1.9

What's Changed

Major

• [New] About page.
• [New] App update checker. #32
• [New] Exit app using Ctrl+C anytime in the app.
• [Improved] Extracted links would be shown in real time in app.

Minor

• Removed GitHub link from top
• Fonts are regular instead of bold
• Updated requirements.txt
• A lot of code Refactoring (#34)