[bug] removeDefaultStyles does not remove default styles on ResponsiveGrid

**Describe the bug**
Adding removeDefaultStyles to ResponsiveGrid does not remove styles.

Ref: https://github.com/adobe/aem-react-editable-components/blob/master/src/components/ResponsiveGrid.tsx#L45
```
if (isInEditor || !props.removeDefaultStyles) {
className = `${className} ${props.gridClassNames || ''} ${ClassNames.CONTAINER}`;
}
```
The code here shows that `isInEditor` will always return true and it seems impossible to override gridClassNames prop.

We want to use a custom grid but this is forcing our hand.

**Package version**
2.1.1

**To Reproduce**
1. Add removeDefaultStyles to ResponsiveGrid

**Expected behavior**
Grid styles removed in AEM

**Screenshots**
If applicable, add screenshots to help explain your problem.

**Additional context**
Add any other context about the problem here.

Start in src/components/ResponsiveGrid.tsx around line 45 and trace how removeDefaultStyles, isInEditor, and gridClassNames determine the className. Reproduce the issue with ResponsiveGrid, then verify that the expected grid styles are removed when removeDefaultStyles is enabled while editor behavior remains correct.

Written by the indexing model from the issue text.