Tweak: Show PLG only on selected pages [TMZ-919]

[nicoladj77]

✨ PR Description

Purpose: Refactor PLG (Product Lead Generation) conversion banner to display only on specific admin pages with targeted placement.
Main changes:

• Added whitelist of admin pages with custom CSS selectors for banner placement
• Implemented conditional rendering logic with before/after positioning options
• Added constants for script handles, nonce actions, and user meta keys
• Updated JS implementation to use page-specific selectors

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[Copilot]

Pull Request Overview

This pull request implements selective display of a Product-Led Growth (PLG) conversion banner on specific WordPress admin pages instead of showing it globally. The changes introduce a page-specific configuration system that determines where and how the banner should be displayed.

• Adds a comprehensive list of allowed admin pages with their corresponding CSS selectors
• Modifies banner activation logic to return page configuration data instead of a boolean
• Updates JavaScript to use dynamic selectors for banner positioning

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
phpcs.xml	Updates PHP CodeSniffer property name for WordPress deprecated functions rule
modules/admin-home/components/conversion-banner.php	Implements page-specific banner display logic with allowed pages configuration
modules/admin-home/assets/js/hello-elementor-conversion-banner.js	Updates banner positioning to use dynamic selectors from configuration
.vscode/settings.json	Adds VS Code workspace settings for PHP CodeSniffer integration
.buildignore	Excludes VS Code settings from build output

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