[Bug] Support RTL layout in editor container without breaking rendering

Description

The Monaco Editor is widely used in applications that serve a global audience, including users who primarily work in right-to-left (RTL) languages such as Arabic, Hebrew, Persian, and Urdu.

As we work toward building an editing experience for users worldwide, we discovered that the editor fails to render correctly when the container uses an RTL layout. Specifically, when dir="rtl" is applied to the editor container, the Monaco Editor UI appears broken.

Steps to Reproduce

1. Create a container
2. Set dir="rtl" on the container element before or after creating the editor
3. Create a Monaco Editor instance inside that container

var container = document.getElementById('editor');
    container.dir = 'rtl';
    monaco.editor.create(container, {
      value: 'some test \n some test2',
      theme: 'vs',
      lineNumbers : 'on',
      automaticLayout: true
    });

Expected Behavior
The editor should render its content normally (or at minimum, degrade gracefully with a warning), even when the container has dir="rtl".

Actual Behavior
The editor appears completely empty — no text, no line numbers, no cursor.

Monaco Editor Playground Link

No response

Monaco Editor Playground Code

Start by reproducing the issue with dir="rtl" set before and after monaco.editor.create, using the provided container and editor options. Inspect the editor’s browser rendering behavior under RTL and verify the editor displays text, line numbers, and the cursor without breaking in either setup.