Update to fontawesome v6 about ford HOT 2 OPEN

from pathlib import Path

def replace_text(old, new):
    """Replace text in all html files.

    Parameters
    ----------
    old, new : str
        The string to look for and the string to replace it with.
    """
    files = Path("site/").rglob("*.html")

    for file_path in sorted(files):
        # Read the content of the file
        with open(file_path, "r") as file:
            content = file.read()

        # Write the modified content back to the file
        with open(file_path, "w") as file:
            file.write(content.replace(old, new))


# -----------------------
# Add Font Awesome v6 Kit
old = "</head>"
new = """  <script src="https://kit.fontawesome.com/XXXXXX.js" crossorigin="anonymous"></script>
  </head>
"""
replace_text(old, new, files="all")
print("🔧 Added support for Font Awesome v6.")