closeTab user acknowledge message should be correct

[Debashis9012]

Expected behavior

When a user using closeTab api with a page title then taiko should intelligently figures out the tab as per the title and close it. If taiko did not get the valid page title to close then it should tell the user that "provided page title does not exists" or "kindly enter the valid page title "

Actual behavior

For an example "Google.com" correct page tile is "Google".
If we perform clostTab with the wrong title then it shows the below user message:

> closeTab("google")
 ✔ Closed all tabs with URL google

Note: There is no page title in the current active browser with the title 'google'

In taiko document section there is no example of closeTab with the page title.

Steps to reproduce

> openBrowser()
> goto("Google.com")
> title()
 value: 'Google'
> closeTab("google")
 ✔ Closed all tabs with URL google

Versions

Tested version: Version: 1.0.2 (Chromium: 76.0.3803.0) 22a7d58c629864e04042d4661046d0c3e8e802cd

[Debashis9012]

Tested the above issue,
currently If taiko did not get the valid page title to closeTab then its throwing ✘ Error: No target with given URL/Title found., run .trace for more info. which is a valid user message to rectify the url/page title.
and closeTab with page title example has been added to taiko document section.

Hence this issue has been verified and found fixed.

Tested version: Version: 1.0.2 (Chromium: 76.0.3803.0) 9b0b3fc46c78e2596c9dad34e9a0ce69abf3be30