[UI/UX] Enhance CLI Aesthetics: Modernize Logs & Banner

[hakinexus]

Goal

Upgrade the visual appearance of STOV to make it look more like a modern, professional CLI tool.

The Task

Currently, the tool uses standard [INFO] and [ERROR] tags. We want to replace these with cleaner symbols or better color schemes to improve the user experience.

Requirements:

1. Modernize Logs: Update the log_info and log_error functions to use modern symbols (e.g., ➜, ✔, ✖, >>) instead of text brackets.
2. Enhance Banner: Improve the ASCII art or color scheme of the startup banner.
3. Consistency: Ensure the new style is consistent across the entire application run.

Files to Edit

• src/utils.rs (Logging logic)
• src/main.rs (Banner display)

This project uses the colored crate for terminal styling.