Update CustomBiomeAnnounce-1.0.3

⚠️ Installation Notes
If you're upgrading from a previous version, please note:

• Delete the existing `config.yml` file in the plugin folder to generate the new configuration

✨ New Features
Now if your server has PlaceholderAPI you can use %biome% to see the player's current biome. It works according to the Display name in the config.yml!

A cooldown has been added to check the entry and exit of the same biomes. This will prevent spamming sometimes when passing the same biomes several times in a short time (Thanks to those who recommended this)

Now /cba gui allows players to see a menu with the list of biomes they have explored and those they are missing.

Internal code logic was improved

A .db (local storage) has been added to store the explored biomes of each player. Important: This new feature does not load the explored biomes of the players before its implementation. This means that the count starts from 0 for everyone at the moment of implementation.

⚠️ Important:
The implementation of the list of explored biomes for each player is still under development. I am also working on improving the logic of obtaining biomes.

In these days I will update minimal things of the code functionality that remain to be improved.