chore: address admin view coding standards

[rbcorrales]

Summary

1. Tightens escaping, sanitization, and nonce handling in admin views.
2. Reduces avoidable PHPCS suppressions while keeping scoped database query suppressions where the admin diagnostics intentionally read custom tables.
3. Aligns status view markup and script indentation.

Testing

1. vendor/bin/phpcs --standard=phpcs.xml.dist admin/views --report=summary
2. php -l admin/views/status.php
3. git diff --check

[Copilot]

Pull request overview

This PR focuses on bringing WPVDB admin view templates closer to WordPress coding standards by tightening output escaping/sanitization and improving nonce handling for admin actions, while also cleaning up markup/indentation.

Changes:

• Improved sanitization/unslashing of $_GET inputs across admin views and tightened escaping for URLs/JS strings in the status UI.
• Refined admin status diagnostics UX (nonce-protected “Run Diagnostics” flow; safer rendering of AJAX-derived strings in the test embedding UI).
• Coding-standards cleanups: strict in_array, use of selected()/checked(), translator comments, and markup alignment/indentation updates.

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
admin/views/status.php	Hardens admin status/tools UI (nonce verification, escaping, stricter comparisons) and aligns markup/JS output handling.
admin/views/settings.php	Sanitizes section/settings-updated query params and replaces manual checkbox handling with core helpers.
admin/views/incompatible-db-warning.php	Improves i18n/escaping and makes step rendering safer via esc_html / wp_kses_post.
admin/views/incompatible-db-notice.php	Switches admin notice strings to escaped i18n helpers and adds translator context.
admin/views/header.php	Tightens table existence checks and standardizes pagination variable naming/usage in the header logic.
admin/views/embeddings.php	Improves escaping, i18n, PHPCS scoping, and pagination output sanitization.
admin/views/automattic-connect.php	Simplifies and hardens handling of settings-updated query param with proper unslashing/sanitization.

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[Copilot]

Pull request overview

Copilot reviewed 7 out of 7 changed files in this pull request and generated 3 comments.

[Copilot]

Pull request overview

Copilot reviewed 8 out of 8 changed files in this pull request and generated 1 comment.