TODO:
1. Write a new **selection system**. Godot's built-in `RichTextLabel` selection is limited by the node's boundaries. In normal web, holding click and dragging your mouse across the screen will select text across multiple nodes. Godot doesn't have a "set_selected_text" property, despite having one for "get_selected_text".
2. **Right-click Dropdown** for basic text operations (Copy, Paste, Cut). Download options for images
3. **Select-all CTRL+A shortcut**
4. **Scrolling** in the website container
5. **Store** tab containers so switching tabs won't erase previous tab.
6. **GIF** support
7. **Video** support via [GDE GoZen](https://github.com/VoylinsGamedevJourney/gde_gozen)
8. **More input types** (url, tel, date, time, etc.)
9. **Required** attribute for inputs

Issues:
1. **< br />** counts as 1 element in **WebsiteContainer**, therefore despite being (0,0) in size, it counts as double in spacing.