f2 comment icon always on, v0.3

Template/board/task_comment_icon.php

@@ -0,0 +1,14 @@
+<?php /*
+ * Rendered by the template:board:task:icons hook, inside the card icons row. When a card
+ * has no comments yet, Kanboard shows no comment icon at all -- so adding the first comment
+ * means opening the card and finding the sidebar link. This adds a comment bubble with a
+ * "+" that opens the same comment modal (CommentListController::show) the native count icon
+ * uses, so the first comment can be added straight from the board. Cards that already have
+ * comments render nothing here (the native count icon already shows).
+ *
+ * Only shown to users who may create a comment (CommentController::save is PROJECT_MEMBER),
+ * so it does not appear for read-only viewers.
+ */ ?>
+<?php if (empty($task['nb_comments']) && $this->user->hasProjectAccess('CommentController', 'save', $task['project_id'])): ?>
+    <?= $this->modal->medium('comments-o', '+', 'CommentListController', 'show', array('task_id' => $task['id']), t('Add a comment')) ?>
+<?php endif ?>