Added isDisplayed() as alias to isVisible()

[uditrajput03]

Fixed #4105
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[uditrajput03]

@garg3133 would you mind reviewing my PR

[garg3133]

@uditrajput03 The PR looks good, thanks!

For tests, the top two test cases are sufficient. You can remove the rest.

[uditrajput03]

@uditrajput03 The PR looks good, thanks!

For tests, the top two test cases are sufficient. You can remove the rest.

Sure, Earlier I also think that.
I have done the required changes have a look and Thanks @garg3133 for reviewing my PR.