Backport some blade directives

[rizqyhi]

Background

Sometimes the condition inside an if block was wildly duplicated anywhere for some common checks.
Sometimes writing checked, selected, or disabled attributes for an input requires us to write a hard-to-read ternary operator.
Sometimes an element has so many conditional class attribute values that it becomes hard to read.

Solution

This PR backports some blade directives on the newer Laravel version to provide better DX when writing blade templates. The implemented directives are:

• attribute helper
  • checked
  • selected
  • disabled
  • class
• auth helper
  • auth
  • guest
• env helper
  • env
  • production
• js helper
  • json