[crypto-tracker@danipin] New applet: Crypto Tracker

[d-atoshi]

Description

This is a new applet called Crypto Tracker. It allows users to track real-time cryptocurrency prices and 24h price changes directly on the Cinnamon panel using the CoinGecko API.

Features

• Multi-Metric Display: Track up to three different cryptocurrencies simultaneously.
• Customizable: Users can choose currencies, display symbols, and update intervals.
• Localization: Includes translations for 10 languages (DE, EN, ES, FR, IT, NL, PL, PT, RU, ZH).
• Visual Indicators: Customizable colors for rising and falling prices.

Technical Details

• UUID: crypto-tracker@danipin
• API: CoinGecko (no API key required for the public tier).
• Validation: Successfully validated using the ./validate-spice script (No errors found).
• Structure: Follows the official UUID/files/UUID repository structure.

I have also updated the README.md with detailed instructions and included a screenshot.png for the spices website.