Background dismissable is true on default should be changed to false

[barun1997]

In the Overlay, the comments read:

 /// Controls whether the overlay should be dismissed on touching the background or not.
  ///
  /// The default value for [backgroundDismissible] is `true`.

However, the default value for backgroundDismissible is false.

[barun1997]

@MoacirSchmidt I think you misunderstood the changes requested. The default value for backgroundDismissible was false in the code, but the comments read that the value is true. So I was requesting for the comment to be updated.

[MoacirSchmidt]

You are right. I am sorry. I deleted my comment

[barun1997]

@MoacirSchmidt No worries! Have a wonderful day :)