Added shouldStretchDrawer property to SideMenuSide interface (#5543)

Looking at the docs (1581780d2c/docs/docs/styling.md) and code (1581780d2c/lib/ios/RNNSideMenuSideOptions.m (L11)) it's possible to use the shouldStretchDrawer property on sideMenu. This property was however missing in the TS interface.

lib/src/interfaces/Options.ts

@@ -639,6 +639,12 @@ export interface SideMenuSide {
    * Set the height of the side menu
    */
   height?: number;
+  /**
+   * Stretch sideMenu contents when opened past the width
+   * #### (iOS specific)
+   * @default true
+   */
+  shouldStretchDrawer?: boolean;
 }
 
 export interface OptionsSideMenu {