Revert "The "show password" check box in the wifi connection details page in the FTU app is cut off on the right edge in RTL mode and label is cut off too"

This reverts commit bb911ea6588ee273e397105910d0fccc84aecd64.
Bug 1037146 - The "show password" check box in the wifi connection details page in the FTU app is cut off on the right edge in RTL mode and label is cut off too r=fcampo r=Nefzaoui