Add total row to people table showing number of beneficiaries

[Copilot]

This PR implements a totals counter for the people table, similar to the existing functionality in the stock table. The counter displays the number of beneficiaries being shown and is influenced by applied filters.

Changes Made

Core Implementation:

• Added totals calculation to include/people.php that counts displayed beneficiaries after all filtering
• Displays "Total" and "X beneficiaries" in both header and footer rows (matching stock table behavior)
• Dynamically calculates column count to properly align with table structure regardless of camp configuration

Key Features:

• Counter reflects filtered results (search, tags, quick filters, etc.)
• Handles all conditional columns correctly (tags, last activity, custom fields)
• Uses the same firstline/listfooter template pattern as stock.php for consistency
• Maintains proper alignment across different table configurations

Testing:

• Added comprehensive Cypress E2E test (5_3_People_Totals_Test.js) to verify functionality
• Tests check that totals display correctly and update when filters are applied
• All syntax validation passes

Example

Before: People table had no totals information
After: People table shows totals like the stock table:

| Total | 156 beneficiaries |    |    |    |    |    |    |
|-------|-------------------|----|----|----|----|----|----|
| Surname | Firstname | Gender | Age | Family ID | Tokens | Comments | Icons |
| Smith | John | Male | 25 yrs | FAM001 | 50 | Active | 📍 |
| ... more rows ... |
| Total | 156 beneficiaries |    |    |    |    |    |    |

The implementation ensures the counter updates correctly when users apply filters, search, or use tags, providing the same user experience as the existing stock table functionality.

Fixes #729.

Warning

Firewall rules blocked me from connecting to one or more addresses

I tried to connect to the following addresses, but was blocked by firewall rules:

• cs.symfony.com
  • Triggering command: curl -L REDACTED -o php-cs-fixer.phar (dns block)
• https://api.github.com/repos/Nevay/spi/zipball/e7078767866d0a9e0f91d3f9d42a832df5e39002
  • Triggering command: /usr/bin/php8.3 -n -c /tmp/zje3Wi /usr/bin/composer install (http block)
• https://api.github.com/repos/Nyholm/psr7/zipball/a71f2b11690f4b24d099d6b16690a90ae14fc6f3
  • Triggering command: /usr/bin/php8.3 -n -c /tmp/zje3Wi /usr/bin/composer install (http block)
• https://api.github.com/repos/composer/semver/zipball/4313d26ada5e0c4edfbd1dc481a92ff7bff91f12
  • Triggering command: /usr/bin/php8.3 -n -c /tmp/zje3Wi /usr/bin/composer install (http block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

---

💬 Share your feedback on Copilot coding agent for the chance to win a $200 gift card! Click here to start the survey.

[Copilot]

@pylipp 👋 This repository doesn't have Copilot instructions. With Copilot instructions, I can understand the repository better, work faster and produce higher quality PRs.

I can generate a .github/copilot-instructions.md file for you automatically. Click here to open a pre-filled issue and assign it to me. I'll write the instructions, and then tag you for review.

[pylipp]

https://trello.com/c/zVxIyk4F/1816-dropapp-add-a-sum-total-row-for-beneficiaries-in-the-manage-beneficiaries-table