fix(modeling): fix command handler JSDocs

lib/features/modeling/cmd/AddLaneHandler.js

@@ -12,11 +12,19 @@ import {
   LANE_INDENTATION
 } from '../util/LaneUtil';
 
+/**
+ * @typedef {import('diagram-js/lib/command/CommandHandler').default} CommandHandler
+ *
+ * @typedef {import('../Modeling').default} Modeling
+ * @typedef {import('../../space-tool/BpmnSpaceTool').default} SpaceTool
+ */
 
 /**
  * A handler that allows us to add a new lane
  * above or below an existing one.
  *
+ * @implements {CommandHandler}
+ *
  * @param {Modeling} modeling
  * @param {SpaceTool} spaceTool
  */