fix(YfmTabs): disable drag of tab title (#766)

Author: d3m1d0v

src/extensions/yfm/YfmTabs/YfmTabsSpecs/schema.ts

@@ -37,7 +37,7 @@ export const getSchemaSpecs: (
         group: 'block',
         parseDOM: [{tag: 'div.yfm-tab'}],
         toDOM(node) {
-            return ['div', node.attrs, 0];
+            return ['div', {draggable: 'false', ...node.attrs}, 0];
         },
         placeholder: {
             content:

src/extensions/yfm/YfmTabs/views.ts

@@ -104,6 +104,7 @@ export const tabView: NodeViewConstructor = (node, view, getPos) => {
             createTab(currentTab, tabsParentNode)(state, dispatch, view);
     });
 
+    tabElem.draggable = false;
     for (const attr in node.attrs) {
         if (Object.prototype.hasOwnProperty.call(node.attrs, attr)) {
             tabElem.setAttribute(attr, node.attrs[attr]);