refactor: combined duration (pages + minutes), has_annexes checkbox, remove Mo

- Remove Mo option from duration, keep only pages and minutes
- Redesign duration fieldset: separate Pages input + Durée h:m inputs, both can be set together
- Fix minutes input visibility: wider inputs (6ch), proper CSS layout
- Add has_annexes checkbox to fichiers fragment + DB column + controllers
- Display duration on admin backoffice recap page
- Display duration on public partage recap page
- Update public TFE page for new combined duration format
- Migration 041: add duration_pages, duration_minutes, has_annexes columns; migrate data; recreate views

app/src/icon.php

@@ -31,5 +31,8 @@ function icon(string $name, int $size = 0, string $class = ''): string {
             $svg = str_replace('<svg', '<svg class="' . $class . '"', $svg);
         }
     }
+    // Collapse newlines: otherwise raw SVG markup breaks JS string literals
+    // when icon() is used inside <script> tags (e.g., contenus.php inline rename)
+    $svg = str_replace(["\n", "\r"], '', $svg);
     return $svg;
 }