Fix footer text not translated in Magnification settings.

- pass in the summary res id instead of the actual text when building
the launch bundle for the magnification settings.
- remove the title argument as we are passing the title res already,
which takes precedence.

Change-Id: I4ba624e1d9722aa980ea94c306df9a015a159555
Fixes: 78126057
Test: run i18nscreenshots