w7 update

UI & Visual updates

• Added custom cursor, which provides a consistent visual style and serves as an indicator of what action can be performed at the time. (eg. when hovering on monster card, cursor turns into sword indicating attack action)
• Modified help menu including texts and visuals, add scrollbar to fit longer texts
• Modify the card display 
• Add shaking effect to all player and monster cards when the hp of the specific card decreases
• Adding better visualization for skill card and random card
• Start build individual cards based on assets found on internet