Fix Lint (1st try)

inspector/src/components/actionTabs/tabs/propertyGrids/renderGridPropertyGridComponent.tsx

@@ -7,7 +7,7 @@ import { Mesh } from "babylonjs/Meshes/mesh";
 import { Texture } from "babylonjs/Materials/Textures/texture";
 import { UtilityLayerRenderer } from "babylonjs/Rendering/utilityLayerRenderer";
 import { Scene } from "babylonjs/scene";
-import { GridMaterial } from "babylonjs-materials/grid/index";
+import { GridMaterial } from "babylonjs-materials/grid/gridMaterial";
 
 import { CheckBoxLineComponent } from "../../lines/checkBoxLineComponent";
 import { GlobalState } from '../../../globalState';