Add suggest menu for task ID

app/Filter/TaskStartsWithIdFilter.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace Kanboard\Filter;
+
+use Kanboard\Core\Filter\FilterInterface;
+use Kanboard\Model\TaskModel;
+
+/**
+ * Class TaskIdSearchFilter
+ * 
+ * @package Kanboard\Filter
+ * @author  Frederic Guillot
+ */
+class TaskStartsWithIdFilter extends BaseFilter implements FilterInterface
+{
+    /**
+     * Get search attribute
+     *
+     * @access public
+     * @return string[]
+     */
+    public function getAttributes()
+    {
+        return array('starts_with_id');
+    }
+
+    /**
+     * Apply filter
+     *
+     * @access public
+     * @return FilterInterface
+     */
+    public function apply()
+    {
+        $this->query->ilike('CAST('.TaskModel::TABLE.'.id AS CHAR(8))', $this->value.'%');
+        return $this;
+    }
+}