Implementing Text Input UI for the Login Screen

[Markneoneo]

• Added a login screen and name input manager in the MongoDB scene, enhancing user accessibility and customization.
• Implemented three methods for name input:
  • Direct keyboard typing for fast and straightforward name entry.
  • On-screen keyboard using mouse cursor for players who prefer a visual interface.
  • Arrow keys for letter selection, accommodating players who use a game controller.
• Ensured all input methods are intuitive and responsive, improving the overall user experience.
• Still need to add UI for password input
• Still need to add "Done" and "Quit" button functionalities