☂ Land updated app architecture guidance

[RedBrogdon]

We're in the process of creating new code examples and docs covering application architecture (e.g. state management, networking, etc.). This issue represents the work of getting those docs reviewed and landed:

• Land the initial, high-level documentation for content.
  • Add initial pages for Architecture guidance #11300
• Update navigation to include a link to the above documentation.
  • Add initial pages for Architecture guidance #11300
• Land Compass app tutorial.
• Land design recipes.

Design recipes:

• Optimistic state - Add "Optimistic State" architecture cookbook recipe #11394
• Persistent storage part 1: Key-value store
• Persistent storage part 2: SQL
• Offline First support
• Command pattern
• Result pattern