Light PSR Changes

[TheWitness]

No description provided.

[Copilot]

Pull request overview

This PR applies PSR (PHP Standards Recommendations) formatting improvements across the maintenance plugin codebase. The changes focus on code style consistency and readability.

Changes:

• SQL query formatting improvements including removal of trailing spaces, consistent indentation, and multi-line formatting of complex queries
• Function call formatting standardization, moving opening parentheses to the same line as function names
• html_start_box parameter type corrections from strings to proper boolean/integer types
• Removal of unnecessary parentheses in SQL JOIN ON clauses
• Trailing whitespace cleanup in JavaScript code

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
setup.php	SQL query formatting improvements and negation operator spacing change
maint.php	Extensive SQL formatting improvements, html_start_box parameter corrections, whitespace cleanup, and variable assignment formatting
functions.php	Consistent SQL query formatting improvements