Multiple QoL improvements; Add Donate card

[LyonSyonII]

Contents (#35)

Other

• remove 'onsuccess' callback from 4-2
• add check for left out quotes
• changed accent color to more saturated one
• Added clarification for "learn by doing" exercises
• removed line number
• added ctrl-enter shortcut
• improved exercise 5-6 with better validation and added a Hint and Note
• //github.com/LyonSyonII/rust-quest into dev

Uncategorised!

• added monetization forms
• added monetization forms
• add skeleton of 'donate'
• removed useless log
• [3-4] make check more concise
• Change title of README.md to include "book"
• update packages and flake.nix
• adding IndexedDB instead of local storage
• integrate IndexedDB
• improve project structure by separating scripts from .astro files
• improve project structure by separating scripts from .astro files
• small changes
• fix RobotGame not being imported correctly
• add donate button; improve persistence
• Update preview.yml
• update dependencies; Remove unnecessary import
• Merge branch 'main' into dev

[github-actions]

🎊 PR Preview 7132a10 has been successfully built and deployed to https://LyonSyonII-rust-quest-preview-pr-35.surge.sh

🕐 Build time: 0.012s

_{🤖 By surge-preview}