Add link back to start page on 404 error page (#107)

[wakqasahmed]

What

Adds a link back to the start page (admin dashboard root) on the 404 error page (modules/App/views/errors/404.php).

Why

Closes #107. Currently the 404 page is a dead end — no way to navigate back into the app without manually editing the URL.

Implementation notes

• Used the $this->route('/') helper for the link target, matching the existing pattern used elsewhere in the codebase for linking to the dashboard/start page (see modules/App/layouts/app.php, e.g. <a href="<?= $this->route('/') ?>" aria-label="<?= t('Dashboard') ?>">). This resolves to the admin dashboard root, which is the correct "start page" target given this view lives under modules/App/views/errors/ (the admin-side error view) — there is no separate public-site 404 template in the codebase.
• Label uses the file's existing i18n convention: t('Back to start page').
• No other 404/error views in the repo needed changes; this is the only 404 template.

Testing

• php -l syntax check passed (PHP 8.3, matching the composer.json "php": "^8.3.0" requirement), via docker run --rm -v $(pwd):/app -w /app php:8.3-cli php -l modules/App/views/errors/404.php.
• Manual review confirms the added markup follows the existing markup/whitespace conventions in the file.

Summary by CodeRabbit

• Bug Fixes
  • Added a link on the 404 error page to return to the start page.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: c65433a3-8183-460c-9ce8-698cef89a64b

📥 Commits

Reviewing files that changed from the base of the PR and between 69d3238 and 2552265.

📒 Files selected for processing (1)

• modules/App/views/errors/404.php

Included review availability: Your plan includes up to 4 reviews per rolling hour; 1 remains after this review.

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📝 Walkthrough

Walkthrough

The 404 error view now includes a paragraph with a link to return to the start page.

Changes

404 error navigation

Layer / File(s)	Summary
Add start-page link modules/App/views/errors/404.php	The 404 view renders a link to the start page.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Merge Risk: ⚪ Minimal · up to 25522

This localized change adds a translated link from the 404 page back to the dashboard start page. No actionable merge-blocking risk remains after normal checks and review.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly describes the main change: adding a link to the start page on the 404 error page.
Linked Issues check	✅ Passed	The change implements issue #107 by adding a translated link back to the start page on the 404 page.
Out of Scope Changes check	✅ Passed	The pull request contains only the requested 404-page link change and no unrelated modifications.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[wakqasahmed]

Checked for outstanding review feedback on this PR: there are no review threads and no reviews requesting changes — CodeRabbit's only comment states "No actionable comments were generated in the recent review." Nothing to address.

[wakqasahmed]

Hi @aheinze — noticed this PR doesn't have a reviewer assigned yet — it's been about 4 days, CI is green and it's mergeable. Would you (or whoever's best placed) be able to take a look, or point me to who should? Thanks!