fix: Fix bug that prevented navigating into flyouts.

Author: gonfunko

src/actions/arrow_navigation.ts

@@ -79,7 +79,6 @@ export class ArrowNavigation {
           // @ts-expect-error private method
           isHandled = toolbox && toolbox.selectChild();
           if (!isHandled && flyout) {
-            Blockly.getFocusManager().focusTree(flyout.getWorkspace());
             this.navigation.defaultFlyoutCursorIfNeeded(workspace);
           }
           return true;

src/navigation.ts

@@ -306,8 +306,13 @@ export class Navigation {
 
     const curNode = flyoutCursor.getCurNode();
     const sourceBlock = flyoutCursor.getSourceBlock();
-    if (curNode && !this.isFlyoutItemDisposed(curNode, sourceBlock))
+    if (
+      curNode &&
+      curNode.getFocusableTree() === flyout.getWorkspace() &&
+      !this.isFlyoutItemDisposed(curNode, sourceBlock)
+    ) {
       return false;
+    }
 
     const flyoutContents = flyout.getContents();
     const defaultFlyoutItem =