Fix database permissions

[AndrewSpeelman]

Any authenticated user should be able to:

• view (read) all recipes
• edit (update) nothing... for now.
• delete nothing... for now

Admins (me) should be able to:

• view (read) all recipes
• edit (update) everything
• delete everything

See:

• https://firebase.google.com/docs/rules/basics?authuser=2&hl=en#realtime-database_4
• https://firebase.google.com/docs/database/security/core-syntax?authuser=2

[AndrewSpeelman]

recipe2.json in DB fixes this.

[AndrewSpeelman]

Current auth rules for CRUD:

• Created By User can do anything they want with their own recipes.
• Anyone can see anyones recipes, but can't modify or delete them.