Fix bug with about page

[Joaalslie]

Changes 💎 🛥 🛴

Fix two bugs in about page

• The boxes are placed and sized correctly
• The get_todo_count-method and get_todos_length-method is replaced
  • Retrieving the count is done in init

Further comments and notes 📝 💻 ⛵️ 🏄

Had to remove the container-class in html to fix the placement-bug of the boxes!