Add more in-app help bubbles

[seancolsen]

• Home page

  • Link to /user-guide/databases/

• Database page

  • Add help bubble on schemas tab:

    Use schemas to organize related tables into logical groups within your database.

    Link to /user-guide/schemas/

• Modal: Create Schema

  • Remove help text

• Modal: databse permissions

  • Link to /user-guide/databases/#permissions
  • Explain difference between database permissions and settings
  • Explain difference between database permissions and schema/table permissions

• Modal: Schema Permissions

  • Link to /user-guide/schemas/#permissions
  • Write more descriptive text to replace "Allow usage of the schema."

• Modal: Table Permissions

  • Link to /user-guide/tables/#permissions
  • Write better text to replace "Allow creation of foreign key references to the table"