[WK2] Fix for not displaying of paste menu on edit field context

[WK2] Fix for not displaying of paste menu on edit field context

[Version] N/A
[Project] N/A
[Title] fails to "paste" the "cut"ed text ,"paste" option not displaying
for blank form fields.
[BinType] N/A
[Customer] N/A
[Issue#] WEB-1082
[Problem] paste was not displayed after selecting cut in editbox
[Cause] page pointer in pasteboard is null when cut is selected before
copy is selected
[Solution] assigned page pointer as its assigned in case of copy
[Team] Browser(WCS)
[Developer] Prathmesh.m
[Request] N/A
[Horizontal expansion] N/A
[SCMRequest] N/A

Change-Id: Iac9b14c7032aa1b2662296b9c195cdd59377411e