Fix drag behavior to ignore internal drags but allow dragging the who…

…le element when `draggable:true`

@webwriter/core/view/editor/nodeviews.ts

@@ -102,9 +102,14 @@ export class WidgetView implements NodeView {
       dom.addEventListener("keydown", e => this.emitWidgetInteract(e), {passive: true})
       dom.addEventListener("click", e => this.emitWidgetInteract(e))
       dom.addEventListener("touchstart", e => this.emitWidgetInteract(e), {passive: true})
-      if(!this.node.type.spec.draggable) {
-        dom.addEventListener("dragstart", e => e.preventDefault())
-      }
+      dom.addEventListener("dragstart", e => {
+        if(e.composedPath()[0] !== this.dom) {
+          e.stopPropagation()
+        }
+        else if(!this.node.type.spec.draggable) {
+          e.preventDefault()
+        }
+      })
       // dom.addEventListener("selectstart", e => e.preventDefault())
     }
     return dom