gui: language EN fixes

-swipe to reboot added
-added comment regarding "type yes to confirm format data"
-Remove the word "Settings" from the from some header subheadings (some had it, some don't)


Change-Id: Id3810c4f3aa5c02e94d854118805da7e51d309f3
Signed-off-by: z31s1g <z31s1g@googlemail.com>