[Bug] Cannot using MazCard, MazBtn, MazLink and MazDropdown without vue-router

[LouisMazel]

🐛 Bug Description

To use MazCard, MazBtn, MazLink, and MazDropdown, we currently need to install vue-router. We should detect Vue Router and lazy-load modules.

📦 Affected Package(s)

• [X] maz-ui (main component library)
• [ ] @maz-ui/nuxt (Nuxt module)
• [ ] @maz-ui/icons (icon library)
• [ ] @maz-ui/themes (theme system)
• [ ] @maz-ui/translations (i18n)
• [ ] @maz-ui/utils (utilities)
• [ ] @maz-ui/cli (CLI tools)
• [ ] @maz-ui/eslint-config (ESLint config)
• [ ] @maz-ui/mcp (MCP of maz-ui)
• [ ] @maz-ui/node (Node utilities)
• [ ] docs (documentation)
• [ ] Other: