refactor(settings): simplify PHP templates and reduce duplication

[joshtrichards]

Summary

Cleaned up Settings PHP templates to make them easier to read and maintain.

Key Changes:

• Moved repeated logic and checks into local variables.
• Replaced redundant markup with loops and arrays.
• Flattened nested conditionals and standardized formatting.

Notes:

• No intended functional/UI changes; strictly a code quality refactor.
• All labels, links, and visibility logic remain intact.

TODO

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Tests (unit, integration, api and/or acceptance) are included
• Screenshots before/after for front-end changes
• Documentation (manuals or wiki) has been updated or is not required
• Backports requested where applicable (ex: critical bugfixes)
• Labels added where applicable (ex: bug/enhancement, 3. to review, feature component)
• Milestone added for target branch/version (ex: 32.x for stable32)

AI (if applicable)

• The content of this PR was partly or fully generated using AI