fix: better url mapping vxtwitter🧵

[Yanzi-dev]

Summary:

This pull request aims to enhance the handleGuildMessageCreation function by introducing a more flexible URL mapping system. The URLs and their corresponding replacements are externalized, allowing for easy modification and extension without modifying the function itself.

Changes Made:

• Moved the URL mapping definitions outside the handleGuildMessageCreation function.
• Created an array called urlMappings to hold the URL patterns and replacements.
• Modified the function to iterate over the urlMappings array and apply the corresponding replacements to the message content.
• Improved code readability and maintainability.