fix: Tab no longer works to nest lists (regression from comment merge)

shared/editor/plugins/Keys.ts

@@ -24,10 +24,6 @@ export default class Keys extends Extension {
     };
 
     return {
-      // No-ops prevent Tab escaping the editor bounds
-      Tab: () => true,
-      "Shift-Tab": () => true,
-
       // Shortcuts for when editor has separate edit mode
       "Mod-Escape": onCancel,
       "Shift-Escape": onCancel,

shared/editor/plugins/PreventTab.ts

@@ -0,0 +1,15 @@
+import Extension, { Command } from "../lib/Extension";
+
+export default class PreventTab extends Extension {
+  get name() {
+    return "preventTab";
+  }
+
+  keys(): Record<string, Command> {
+    return {
+      // No-ops prevent Tab escaping the editor bounds
+      Tab: () => true,
+      "Shift-Tab": () => true,
+    };
+  }
+}