[INTERNAL][FIX] sap.m.SearchField - IE CSS fix: button was popping out when clicked in a not focused search field

Change-Id: I790028e69b39d092a9b625e767bc7689826307b8
(cherry picked from commit 6e8f8a55209e345f8698c04b2716ccc2c3b57fc2)
CR-Id: 012003146900009020122014
Merge "[INTERNAL][FIX] sap.m.SearchField - IE CSS fix: button was popping out when clicked in a not focused search field" into rel-1.26