Adding additional bodyPadding to IFrameOptions

This change add the missing bodyPadding to the IFrameOptions definition of iframe-resizer

types/iframe-resizer/index.d.ts

@@ -32,6 +32,11 @@ export interface IFrameOptions {
    * CSS margin attribute, for example '8px 3em'. A number value is converted into px.
    */
   bodyMargin?: number | string;
+  /**
+   * Override the default body padding style in the iFrame. A string can be any valid value for the
+   * CSS margin attribute, for example '8px 3em'. A number value is converted into px.
+   */
+  bodyPadding?: number | string;
   /**
    * When set to true, only allow incoming messages from the domain listed in the src property of the iFrame tag.
    * If your iFrame navigates between different domains, ports or protocols; then you will need to