Feature: Emoji mode (toggleable)

[wiertmir]

Goal

Add an Emoji mode that augments listings and details with emoji (🐒, 🍌) when enabled.

Why

Extra charm for modern terminals — emoji make the app more playful.

Light implementation notes

• Program should parse a --emoji flag (or EMOJI=1 env var).
• Add EmojiHelper or integrate into MonkeyHelper to provide emoji strings for list items and details.
• When enabled, prepend emoji to monkey names and show a banana emoji near population or status.
• Ensure emoji mode is optional and falls back gracefully when characters can't be displayed.

Files to modify/create

• MyMonkeyApp/Helpers/EmojiHelper.cs (optional)
• MyMonkeyApp/Program.cs argument parsing

Labels:["enhancement","feature-request","good first issue","area-console"]