- Corrected syntax to allow all 8.x versions of PHP in composer.json
- Bumped CodeIgniter from 4.4.3 to 4.4.5
- Bumped Code from 4.4.3 format to 4.4.4 format
- Replaced TRUE/FALSE constants with true/false keywords
- Replaced NULL constant with null keyword
- Replaced `<?php echo` in views with shortened `<?=`
- Added missing variable declaration
- Added missing function return type in declaration
- replaced `== true`, `== false`, `=== true` and `=== false` in if statements with simplified forms