fix: Fix centering element on init (#2445)

Co-authored-by: Andrés Rivera <andres@MBP.local>
Co-authored-by: Lipis <lipiridis@gmail.com>
Co-authored-by: dwelle <luzar.david@gmail.com>

src/components/App.tsx

@@ -593,6 +593,8 @@ class App extends React.Component<ExcalidrawProps, AppState> {
         scene.elements,
         {
           ...scene.appState,
+          width: this.state.width,
+          height: this.state.height,
           offsetTop: this.state.offsetTop,
           offsetLeft: this.state.offsetLeft,
         },