Users without the 'employees' permission can no longer impersonate other
employees when creating or editing expenses and receivings. The employee
field is now restricted to the current user for new records and shows the
stored employee for existing records.
Changes:
- Expenses controller: Add permission check in getView() and postSave()
- Receivings controller: Add permission check in getEdit() and postSave()
- Form views: Conditionally display dropdown or read-only field
Fixes#3616
* Improve code style and PSR-12 compliance
- refactored code formatting to adhere to PSR-12 guidelines
- standardized coding conventions across the codebase
- added missing framework files and reverted markup changes
- reformatted arrays for enhanced readability
- updated language files for consistent styling and clarity
- minor miscellaneous improvements
- Made view CI form helper function call format uniform.
- replaced calls to array() with []
- Placed { on its own line
- Removed empty lines where there shouldn't be any.
- Replaced text/javascript with application/javascript as the former is deprecated
- 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
