Add Syntax Highlighting for Code Files

[chrisdedman]

Description

To improve readability in the editor, we need to implement syntax highlighting for code files (e.g., C++, Python, JavaScript) using Qt6's QSyntaxHighlighter class.

Tasks

• Research and integrate QSyntaxHighlighter for syntax highlighting.
• Define and implement syntax highlighting rules for C++ first.
• Integrate syntax highlighting into the editor’s text display (using QTextEdit or QPlainTextEdit).
• Handle file type detection to automatically apply the correct syntax highlighting (.c and .cpp first).
• Implement with multiple languages.
• Test syntax highlighting.

Supported Languages:

This is the list of currently supported languages, in progress, and future implementation. Feel free to contribute to any of those or implement any other language not listed here.

• Markdown
• YAML
• C/C++ (in progress)
• Golang
• Python
• Elixir (in progress)

Tip

For a guide on how to implement new syntax highlight or contribute to an existing one, refer to the wiki page