hint button implementation added to project command

[mbn-code]

This pull request includes enhancements to the projectCommand function in src/commands/project_cmd.cpp and adds new hints to the src/res/hints.txt file. The most important changes include adding a button to display hints and handling button click events.

Enhancements to projectCommand function:

• Added a static boolean buttonClicked to track the button click state.
• Modified the embed field title from the project content to "Project Idea".
• Implemented an event handler for button clicks to display a hint from res/hints.txt and prevent multiple clicks.

Addition of new hints:

• Added various programming hints to the src/res/hints.txt file for use in the hint button feature.

[ebcq]

Thank you @mbn-code! Just a few ideas for improvement:

1. Replace the tabs with spaces (since we use spaces everywhere else)
2. Put the hints in the same file (project.txt) instead of creating a new file hints.txt for less confusion
3. Refer to resources in the hints (e.g. cppreference)

I can think of two possible solutions.

1. CSV

"Print `Hello, World!` to the screen.";"Use the [std::cout](https://en.cppreference.com/w/cpp/io/cout) stream to print text to the console."

2. JSON (if we want more separated information)

{
   "title": "Hello World!",
   "description": "Print `Hello, World!` to the screen.",
   "hint": "Use the [std::cout](https://en.cppreference.com/w/cpp/io/cout) stream to print text to the console.",
   "level": "Beginner"
}

What are your thoughts on these ideas?

[ebcq]

tabs -> spaces

[ebcq]

Your code had a few problems that I fixed, so please take a look at my changes. Everything else looked fine to me :)