[docs] update readme with new logo and updated information

[willianrod]

Expected

Update README with new supported devices, updated screenshots, updated documentation on how to create keys and current supported features. Also, important to add a pt-BR version of the README. Also add a step-by-step guide on how to download the app and client and get up and running.

Current supported features

• Create multiple devices
• Customize device layout
• Create multiple screens
• Navigate between screens
• Open executable
• Trigger hotkey
• Open an URL
• Play sound
• Trigger media keys

Upcoming features:

• Delete device
• Export/Duplicate device
• Integrate with OBS
• Integrate with Discord
• Integrate with Twitch