Create FlyoutDialog component

[luixxiul]

Test plan

#10978 (comment)

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Describe the issue you encountered: Create FlyoutDialog component.

See my comment here: #10933 (review)

Creating <FlyoutDialog> to remove commonStyles.flyoutDialog.

eg.

<Dialog ...>
 <FlyoutDialog custom={
   styles.siteInfo,
   this.props.isBlockedRunInsecureContent && styles.siteInfo_large
 }>
 ...
 </FlyoutDialog>
</Dialog>

By setting up the component CommonForm can be normalized as follows:

 class CommonForm extends ImmutableComponent {
   render () {
-    return <div className={css(
-      commonStyles.flyoutDialog,
-      styles.commonForm
-    )} {...this.props} />
+    return <FlyoutDialog custom={styles.commonForm}>
+      {this.props.children}
+    </FlyoutDialog>
   }
 }

You will be able to set up the components following:

FlyoutDialog -> CommonForm -> CommonFormHanger

• Extra QA steps:
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• Any related issues:

[cezaraugusto]

reverted in #14162. Keeping closed as Aphrodite refactor is not made anymore